56172455242 has 32 divisors (see below), whose sum is σ = 88186927104. Its totient is φ = 26808148800.

The previous prime is 56172455239. The next prime is 56172455347. The reversal of 56172455242 is 24255427165.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1712617 + ... + 1745107.

It is an arithmetic number, because the mean of its divisors is an integer number (2755841472).

Almost surely, 2^56172455242 is an apocalyptic number.

56172455242 is a deficient number, since it is larger than the sum of its proper divisors (32014471862).

56172455242 is a wasteful number, since it uses less digits than its factorization.

56172455242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32974.

The product of its digits is 672000, while the sum is 43.

The spelling of 56172455242 in words is "fifty-six billion, one hundred seventy-two million, four hundred fifty-five thousand, two hundred forty-two".