55178800 has 30 divisors (see below), whose sum is σ = 132568028. Its totient is φ = 22071360.

The previous prime is 55178789. The next prime is 55178839. The reversal of 55178800 is 887155.

55178800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68574 + ... + 69373.

Almost surely, 2^55178800 is an apocalyptic number.

55178800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55178800 is an abundant number, since it is smaller than the sum of its proper divisors (77389228).

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

55178800 is a wasteful number, since it uses less digits than its factorization.

55178800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137965 (or 137954 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 55178800 is about 7428.2433993509. The cubic root of 55178800 is about 380.7069020700.

The spelling of 55178800 in words is "fifty-five million, one hundred seventy-eight thousand, eight hundred".