56506545 has 32 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 29791872.

The previous prime is 56506507. The next prime is 56506559. The reversal of 56506545 is 54560565.

It is a happy number.

It is not a de Polignac number, because 56506545 - 2⁹ = 56506033 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9664 + ... + 14366.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^56506545 is an apocalyptic number.

It is an amenable number.

56506545 is a deficient number, since it is larger than the sum of its proper divisors (45099855).

56506545 is a wasteful number, since it uses less digits than its factorization.

56506545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806 (or 4800 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 56506545 is about 7517.0835435028. The cubic root of 56506545 is about 383.7363302257.

The spelling of 56506545 in words is "fifty-six million, five hundred six thousand, five hundred forty-five".