56561788 has 24 divisors (see below), whose sum is σ = 106142400. Its totient is φ = 26277888.

The previous prime is 56561779. The next prime is 56561801. The reversal of 56561788 is 88716565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108 + ... + 10636.

It is an arithmetic number, because the mean of its divisors is an integer number (4422600).

Almost surely, 2^56561788 is an apocalyptic number.

It is an amenable number.

56561788 is a deficient number, since it is larger than the sum of its proper divisors (49580612).

56561788 is a wasteful number, since it uses less digits than its factorization.

56561788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10629 (or 10627 counting only the distinct ones).

The product of its digits is 403200, while the sum is 46.

The square root of 56561788 is about 7520.7571427350. The cubic root of 56561788 is about 383.8613413585.

The spelling of 56561788 in words is "fifty-six million, five hundred sixty-one thousand, seven hundred eighty-eight".