56173642 has 16 divisors (see below), whose sum is σ = 96412032. Its totient is φ = 24045840.

The previous prime is 56173639. The next prime is 56173657. The reversal of 56173642 is 24637165.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 56173598 and 56173607.

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 7 ways as a sum of consecutive naturals, for example, 13467 + ... + 17137.

It is an arithmetic number, because the mean of its divisors is an integer number (6025752).

Almost surely, 2^56173642 is an apocalyptic number.

56173642 is a deficient number, since it is larger than the sum of its proper divisors (40238390).

56173642 is a wasteful number, since it uses less digits than its factorization.

56173642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773.

The product of its digits is 30240, while the sum is 34.

The square root of 56173642 is about 7494.9077379245. The cubic root of 56173642 is about 382.9812633000.

The spelling of 56173642 in words is "fifty-six million, one hundred seventy-three thousand, six hundred forty-two".