556565013 has 24 divisors (see below), whose sum is σ = 862461600. Its totient is φ = 358244208.

The previous prime is 556564999. The next prime is 556565021. The reversal of 556565013 is 310565655.

556565013 is a `hidden beast` number, since 556 + 56 + 50 + 1 + 3 = 666.

It is not a de Polignac number, because 556565013 - 2⁴ = 556564997 is a prime.

It is a super-2 number, since 2×556565013² = 619529227391380338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556565083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32443 + ... + 46536.

It is an arithmetic number, because the mean of its divisors is an integer number (35935900).

Almost surely, 2^556565013 is an apocalyptic number.

It is an amenable number.

556565013 is a deficient number, since it is larger than the sum of its proper divisors (305896587).

556565013 is an equidigital number, since it uses as much as digits as its factorization.

556565013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79023 (or 79011 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 556565013 is about 23591.6301471518. The cubic root of 556565013 is about 822.5682974055.

The spelling of 556565013 in words is "five hundred fifty-six million, five hundred sixty-five thousand, thirteen".