56791945 has 16 divisors (see below), whose sum is σ = 81273600. Its totient is φ = 37249344.

The previous prime is 56791939. The next prime is 56791963. The reversal of 56791945 is 54919765.

It is a cyclic number.

It is not a de Polignac number, because 56791945 - 2³ = 56791937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56791895 and 56791904.

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, 34470 + ... + 36079.

It is an arithmetic number, because the mean of its divisors is an integer number (5079600).

Almost surely, 2^56791945 is an apocalyptic number.

It is an amenable number.

56791945 is a deficient number, since it is larger than the sum of its proper divisors (24481655).

56791945 is a wasteful number, since it uses less digits than its factorization.

56791945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70584.

The product of its digits is 340200, while the sum is 46.

The square root of 56791945 is about 7536.0430598557. The cubic root of 56791945 is about 384.3812966999.

The spelling of 56791945 in words is "fifty-six million, seven hundred ninety-one thousand, nine hundred forty-five".