55775360 has 32 divisors (see below), whose sum is σ = 133339500. Its totient is φ = 22309888.

The previous prime is 55775359. The next prime is 55775371. The reversal of 55775360 is 6357755.

It can be written as a sum of positive squares in 2 ways, for example, as 52649536 + 3125824 = 7256^2 + 1768^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×55775360² = 6221781566259200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42935 + ... + 44214.

Almost surely, 2^55775360 is an apocalyptic number.

It is an amenable number.

55775360 is an abundant number, since it is smaller than the sum of its proper divisors (77564140).

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

55775360 is an equidigital number, since it uses as much as digits as its factorization.

55775360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87168 (or 87156 counting only the distinct ones).

The product of its (nonzero) digits is 110250, while the sum is 38.

The square root of 55775360 is about 7468.2902996603. The cubic root of 55775360 is about 382.0739785270.

The spelling of 55775360 in words is "fifty-five million, seven hundred seventy-five thousand, three hundred sixty".