55545256 has 64 divisors (see below), whose sum is σ = 120430800. Its totient is φ = 23789568.

The previous prime is 55545241. The next prime is 55545271. The reversal of 55545256 is 65254555.

It is an interprime number because it is at equal distance from previous prime (55545241) and next prime (55545271).

It can be written as a sum of positive squares in 8 ways, for example, as 13942756 + 41602500 = 3734^2 + 6450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157176 + ... + 157528.

Almost surely, 2^55545256 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 55545256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60215400).

55545256 is an abundant number, since it is smaller than the sum of its proper divisors (64885544).

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

55545256 is a wasteful number, since it uses less digits than its factorization.

55545256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 474 counting only the distinct ones).

The product of its digits is 150000, while the sum is 37.

The square root of 55545256 is about 7452.8689777830. The cubic root of 55545256 is about 381.5478326312.

The spelling of 55545256 in words is "fifty-five million, five hundred forty-five thousand, two hundred fifty-six".