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553522420 = 2251129101859
BaseRepresentation
bin100000111111100…
…001010011110100
31102120112212000101
4200333201103310
52113200204140
6130531523444
716500601663
oct4077412364
91376485011
10553522420
112644a3650
12135459584
138a8a4879
1453728dda
15338db99a
hex20fe14f4

553522420 has 96 divisors (see below), whose sum is σ = 1326326400. Its totient is φ = 192192000.

The previous prime is 553522399. The next prime is 553522433. The reversal of 553522420 is 24225355.

553522420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643951 + ... + 644809.

It is an arithmetic number, because the mean of its divisors is an integer number (13815900).

Almost surely, 2553522420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553522420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663163200).

553522420 is an abundant number, since it is smaller than the sum of its proper divisors (772803980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

553522420 is a wasteful number, since it uses less digits than its factorization.

553522420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 553522420 is about 23527.0571895424. The cubic root of 553522420 is about 821.0666369270.

Adding to 553522420 its reverse (24225355), we get a palindrome (577747775).

The spelling of 553522420 in words is "five hundred fifty-three million, five hundred twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 29 44 55 58 101 110 116 145 202 220 290 319 404 505 580 638 859 1010 1111 1276 1595 1718 2020 2222 2929 3190 3436 4295 4444 5555 5858 6380 8590 9449 11110 11716 14645 17180 18898 22220 24911 29290 32219 37796 47245 49822 58580 64438 86759 94490 99644 124555 128876 161095 173518 188980 249110 274021 322190 347036 433795 498220 548042 644380 867590 954349 1096084 1370105 1735180 1908698 2516011 2740210 3817396 4771745 5032022 5480420 9543490 10064044 12580055 19086980 25160110 27676121 50320220 55352242 110704484 138380605 276761210 553522420