56761636 has 6 divisors (see below), whose sum is σ = 99332870. Its totient is φ = 28380816.

The previous prime is 56761567. The next prime is 56761637. The reversal of 56761636 is 63616765.

It can be written as a sum of positive squares in only one way, i.e., 37454400 + 19307236 = 6120^2 + 4394^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56761637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7095201 + ... + 7095208.

Almost surely, 2^56761636 is an apocalyptic number.

It is an amenable number.

56761636 is a deficient number, since it is larger than the sum of its proper divisors (42571234).

56761636 is a wasteful number, since it uses less digits than its factorization.

56761636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190413 (or 14190411 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The square root of 56761636 is about 7534.0318555207. The cubic root of 56761636 is about 384.3129050418.

The spelling of 56761636 in words is "fifty-six million, seven hundred sixty-one thousand, six hundred thirty-six".