56173988 has 12 divisors (see below), whose sum is σ = 105866460. Its totient is φ = 25926432.

The previous prime is 56173969. The next prime is 56174003. The reversal of 56173988 is 88937165.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35307364 + 20866624 = 5942^2 + 4568^2 .

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, 540083 + ... + 540186.

It is an arithmetic number, because the mean of its divisors is an integer number (8822205).

Almost surely, 2^56173988 is an apocalyptic number.

It is an amenable number.

56173988 is a deficient number, since it is larger than the sum of its proper divisors (49692472).

56173988 is a wasteful number, since it uses less digits than its factorization.

56173988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080286 (or 1080284 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 56173988 is about 7494.9308202278. The cubic root of 56173988 is about 382.9820496192.

The spelling of 56173988 in words is "fifty-six million, one hundred seventy-three thousand, nine hundred eighty-eight".