56500571 has 4 divisors (see below), whose sum is σ = 59824152. Its totient is φ = 53176992.

The previous prime is 56500567. The next prime is 56500573. The reversal of 56500571 is 17500565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56500571 - 2² = 56500567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56500573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661765 + ... + 1661798.

It is an arithmetic number, because the mean of its divisors is an integer number (14956038).

Almost surely, 2^56500571 is an apocalyptic number.

56500571 is a deficient number, since it is larger than the sum of its proper divisors (3323581).

56500571 is a wasteful number, since it uses less digits than its factorization.

56500571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323580.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 56500571 is about 7516.6861714455. The cubic root of 56500571 is about 383.7228065909.

The spelling of 56500571 in words is "fifty-six million, five hundred thousand, five hundred seventy-one".