Search a number
-
+
552556420 = 225132518467
BaseRepresentation
bin100000111011110…
…101011110000100
31102111201202220121
4200323311132010
52112423301140
6130455111324
716456436443
oct4073653604
91374652817
10552556420
112639a38a9
12135072544
138a626c80
1453556d5a
153379a64a
hex20ef5784

552556420 has 48 divisors (see below), whose sum is σ = 1254754368. Its totient is φ = 203184000.

The previous prime is 552556399. The next prime is 552556421. The reversal of 552556420 is 24655255.

552556420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (552556421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61027 + ... + 69493.

It is an arithmetic number, because the mean of its divisors is an integer number (26140716).

Almost surely, 2552556420 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 552556420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627377184).

552556420 is an abundant number, since it is smaller than the sum of its proper divisors (702197948).

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

552556420 is a wasteful number, since it uses less digits than its factorization.

552556420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8740 (or 8738 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 552556420 is about 23506.5186703604. The cubic root of 552556420 is about 820.5887205928.

The spelling of 552556420 in words is "five hundred fifty-two million, five hundred fifty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 251 260 502 1004 1255 2510 3263 5020 6526 8467 13052 16315 16934 32630 33868 42335 65260 84670 110071 169340 220142 440284 550355 1100710 2125217 2201420 4250434 8500868 10626085 21252170 27627821 42504340 55255642 110511284 138139105 276278210 552556420