56564071 has 4 divisors (see below), whose sum is σ = 57064752. Its totient is φ = 56063392.

The previous prime is 56564063. The next prime is 56564093. The reversal of 56564071 is 17046565.

It is a happy number.

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 56564071 - 2³ = 56564063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56564021) 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, 250171 + ... + 250396.

It is an arithmetic number, because the mean of its divisors is an integer number (14266188).

Almost surely, 2^56564071 is an apocalyptic number.

56564071 is a deficient number, since it is larger than the sum of its proper divisors (500681).

56564071 is a wasteful number, since it uses less digits than its factorization.

56564071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500680.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 56564071 is about 7520.9089211345. The cubic root of 56564071 is about 383.8665058796.

The spelling of 56564071 in words is "fifty-six million, five hundred sixty-four thousand, seventy-one".