5604072561 has 12 divisors (see below), whose sum is σ = 8394578192. Its totient is φ = 3736048212.

The previous prime is 5604072557. The next prime is 5604072563. The reversal of 5604072561 is 1652704065.

It is a happy number.

5604072561 is a `hidden beast` number, since 56 + 0 + 40 + 7 + 2 + 561 = 666.

It is not a de Polignac number, because 5604072561 - 2² = 5604072557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5604072563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11530771 + ... + 11531256.

Almost surely, 2^5604072561 is an apocalyptic number.

It is an amenable number.

5604072561 is a deficient number, since it is larger than the sum of its proper divisors (2790505631).

5604072561 is an equidigital number, since it uses as much as digits as its factorization.

5604072561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23062042 (or 23062030 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 5604072561 is about 74860.3537328004. The cubic root of 5604072561 is about 1776.2383805069.

The spelling of 5604072561 in words is "five billion, six hundred four million, seventy-two thousand, five hundred sixty-one".