56611404 has 18 divisors (see below), whose sum is σ = 143101140. Its totient is φ = 18870456.

The previous prime is 56611397. The next prime is 56611421. The reversal of 56611404 is 40411665.

56611404 is a `hidden beast` number, since 5 + 6 + 611 + 40 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 786234 + ... + 786305.

Almost surely, 2^56611404 is an apocalyptic number.

It is an amenable number.

56611404 is an abundant number, since it is smaller than the sum of its proper divisors (86489736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56611404 is a wasteful number, since it uses less digits than its factorization.

56611404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572549 (or 1572544 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 56611404 is about 7524.0550237222. The cubic root of 56611404 is about 383.9735496104.

The spelling of 56611404 in words is "fifty-six million, six hundred eleven thousand, four hundred four".