56530771 has 4 divisors (see below), whose sum is σ = 61669944. Its totient is φ = 51391600.

The previous prime is 56530769. The next prime is 56530777. The reversal of 56530771 is 17703565.

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 56530771 - 2¹ = 56530769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56530777) 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, 2569570 + ... + 2569591.

It is an arithmetic number, because the mean of its divisors is an integer number (15417486).

Almost surely, 2^56530771 is an apocalyptic number.

56530771 is a deficient number, since it is larger than the sum of its proper divisors (5139173).

56530771 is a wasteful number, since it uses less digits than its factorization.

56530771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139172.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 56530771 is about 7518.6947670457. The cubic root of 56530771 is about 383.7911620339.

The spelling of 56530771 in words is "fifty-six million, five hundred thirty thousand, seven hundred seventy-one".