56172492 has 36 divisors (see below), whose sum is σ = 143379600. Its totient is φ = 18541152.

The previous prime is 56172461. The next prime is 56172497. The reversal of 56172492 is 29427165.

56172492 is a `hidden beast` number, since 561 + 7 + 2 + 4 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (56172497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3867 + ... + 11282.

Almost surely, 2^56172492 is an apocalyptic number.

It is an amenable number.

56172492 is an abundant number, since it is smaller than the sum of its proper divisors (87207108).

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

56172492 is a wasteful number, since it uses less digits than its factorization.

56172492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15262 (or 15257 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 56172492 is about 7494.8310187755. The cubic root of 56172492 is about 382.9786497880.

The spelling of 56172492 in words is "fifty-six million, one hundred seventy-two thousand, four hundred ninety-two".