5606336561 has 4 divisors (see below), whose sum is σ = 6407241792. Its totient is φ = 4805431332.

The previous prime is 5606336557. The next prime is 5606336569. The reversal of 5606336561 is 1656336065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1656336065 = 5 ⋅331267213.

It is a cyclic number.

It is not a de Polignac number, because 5606336561 - 2² = 5606336557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5606336569) 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, 400452605 + ... + 400452618.

It is an arithmetic number, because the mean of its divisors is an integer number (1601810448).

Almost surely, 2^5606336561 is an apocalyptic number.

It is an amenable number.

5606336561 is a deficient number, since it is larger than the sum of its proper divisors (800905231).

5606336561 is an equidigital number, since it uses as much as digits as its factorization.

5606336561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800905230.

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 5606336561 is about 74875.4736946619. The cubic root of 5606336561 is about 1776.4775436175.

The spelling of 5606336561 in words is "five billion, six hundred six million, three hundred thirty-six thousand, five hundred sixty-one".