56523945 has 16 divisors (see below), whose sum is σ = 90804672. Its totient is φ = 30024000.

The previous prime is 56523923. The next prime is 56523977. The reversal of 56523945 is 54932565.

It is not a de Polignac number, because 56523945 - 2¹⁵ = 56491177 is a prime.

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, 3742 + ... + 11271.

It is an arithmetic number, because the mean of its divisors is an integer number (5675292).

Almost surely, 2^56523945 is an apocalyptic number.

It is an amenable number.

56523945 is a deficient number, since it is larger than the sum of its proper divisors (34280727).

56523945 is a wasteful number, since it uses less digits than its factorization.

56523945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15272.

The product of its digits is 162000, while the sum is 39.

The square root of 56523945 is about 7518.2408181702. The cubic root of 56523945 is about 383.7757140228.

The spelling of 56523945 in words is "fifty-six million, five hundred twenty-three thousand, nine hundred forty-five".