55636875 has 100 divisors (see below), whose sum is σ = 119449264. Its totient is φ = 25272000.

The previous prime is 55636871. The next prime is 55636901. The reversal of 55636875 is 57863655.

55636875 is a `hidden beast` number, since 5 + 5 + 636 + 8 + 7 + 5 = 666.

It is not a de Polignac number, because 55636875 - 2² = 55636871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55636875.

It is not an unprimeable number, because it can be changed into a prime (55636871) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 354297 + ... + 354453.

Almost surely, 2^55636875 is an apocalyptic number.

55636875 is an abundant number, since it is smaller than the sum of its proper divisors (63812389).

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

55636875 is an equidigital number, since it uses as much as digits as its factorization.

55636875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 172 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 55636875 is about 7459.0130044128. The cubic root of 55636875 is about 381.7574984728.

The spelling of 55636875 in words is "fifty-five million, six hundred thirty-six thousand, eight hundred seventy-five".