56740565 has 16 divisors (see below), whose sum is σ = 78804480. Its totient is φ = 38413440.

The previous prime is 56740549. The next prime is 56740583. The reversal of 56740565 is 56504765.

It is not a de Polignac number, because 56740565 - 2⁴ = 56740549 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 7496 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (4925280).

Almost surely, 2^56740565 is an apocalyptic number.

It is an amenable number.

56740565 is a deficient number, since it is larger than the sum of its proper divisors (22063915).

56740565 is a wasteful number, since it uses less digits than its factorization.

56740565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20612.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 56740565 is about 7532.6333376848. The cubic root of 56740565 is about 384.2653444004.

The spelling of 56740565 in words is "fifty-six million, seven hundred forty thousand, five hundred sixty-five".