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552562500 = 223567421
BaseRepresentation
bin100000111011110…
…110111101000100
31102111202002020210
4200323312331010
52112424000000
6130455155420
716456463250
oct4073667504
91374662223
10552562500
112639a8426
12135075b70
138a629979
1453559260
153379c350
hex20ef6f44

552562500 has 168 divisors, whose sum is σ = 1846226368. Its totient is φ = 126000000.

The previous prime is 552562499. The next prime is 552562501. The reversal of 552562500 is 5265255.

It is an interprime number because it is at equal distance from previous prime (552562499) and next prime (552562501).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (552562501) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1312290 + ... + 1312710.

Almost surely, 2552562500 is an apocalyptic number.

552562500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552562500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923113184).

552562500 is an abundant number, since it is smaller than the sum of its proper divisors (1293663868).

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

552562500 is an equidigital number, since it uses as much as digits as its factorization.

552562500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 552562500 is about 23506.6479958330. The cubic root of 552562500 is about 820.5917303374.

The spelling of 552562500 in words is "five hundred fifty-two million, five hundred sixty-two thousand, five hundred".