56169872 has 20 divisors (see below), whose sum is σ = 118723056. Its totient is φ = 25531680.

The previous prime is 56169859. The next prime is 56169889. The reversal of 56169872 is 27896165.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an alternating number because its digits alternate between odd and even.

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, 159398 + ... + 159749.

Almost surely, 2^56169872 is an apocalyptic number.

It is an amenable number.

56169872 is an abundant number, since it is smaller than the sum of its proper divisors (62553184).

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

56169872 is a wasteful number, since it uses less digits than its factorization.

56169872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319166 (or 319160 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 56169872 is about 7494.6562296079. The cubic root of 56169872 is about 382.9726953927.

The spelling of 56169872 in words is "fifty-six million, one hundred sixty-nine thousand, eight hundred seventy-two".