56172288 has 36 divisors (see below), whose sum is σ = 149502248. Its totient is φ = 18723840.

The previous prime is 56172271. The next prime is 56172299. The reversal of 56172288 is 88227165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35803 + ... + 37338.

Almost surely, 2^56172288 is an apocalyptic number.

It is an amenable number.

56172288 is an abundant number, since it is smaller than the sum of its proper divisors (93329960).

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

56172288 is an equidigital number, since it uses as much as digits as its factorization.

56172288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73160 (or 73146 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 56172288 is about 7494.8174093836. The cubic root of 56172288 is about 382.9781861700.

The spelling of 56172288 in words is "fifty-six million, one hundred seventy-two thousand, two hundred eighty-eight".