56579617 has 4 divisors (see below), whose sum is σ = 56665876. Its totient is φ = 56493360.

The previous prime is 56579603. The next prime is 56579639. The reversal of 56579617 is 71697565.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71697565 = 5 ⋅14339513.

It can be written as a sum of positive squares in 2 ways, for example, as 18584721 + 37994896 = 4311^2 + 6164^2 .

It is a cyclic number.

It is not a de Polignac number, because 56579617 - 2¹¹ = 56577569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56579657) 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, 42138 + ... + 43459.

It is an arithmetic number, because the mean of its divisors is an integer number (14166469).

Almost surely, 2^56579617 is an apocalyptic number.

It is an amenable number.

56579617 is a deficient number, since it is larger than the sum of its proper divisors (86259).

56579617 is an equidigital number, since it uses as much as digits as its factorization.

56579617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86258.

The product of its digits is 396900, while the sum is 46.

The square root of 56579617 is about 7521.9423688300. The cubic root of 56579617 is about 383.9016697918.

The spelling of 56579617 in words is "fifty-six million, five hundred seventy-nine thousand, six hundred seventeen".