55075504 has 20 divisors (see below), whose sum is σ = 116409960. Its totient is φ = 25034240.

The previous prime is 55075483. The next prime is 55075511. The reversal of 55075504 is 40557055.

It is a super-2 number, since 2×55075504² = 6066622281708032, which contains 22 as substring.

It is a congruent number.

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, 156289 + ... + 156640.

It is an arithmetic number, because the mean of its divisors is an integer number (5820498).

Almost surely, 2^55075504 is an apocalyptic number.

It is an amenable number.

55075504 is an abundant number, since it is smaller than the sum of its proper divisors (61334456).

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

55075504 is a wasteful number, since it uses less digits than its factorization.

55075504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312948 (or 312942 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 55075504 is about 7421.2872198831. The cubic root of 55075504 is about 380.4691896084.

It can be divided in two parts, 5507 and 5504, that added together give a palindrome (11011).

The spelling of 55075504 in words is "fifty-five million, seventy-five thousand, five hundred four".