56549812 has 12 divisors (see below), whose sum is σ = 107958816. Its totient is φ = 25704440.

The previous prime is 56549807. The next prime is 56549813. The reversal of 56549812 is 21894565.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56549813) 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, 642568 + ... + 642655.

It is an arithmetic number, because the mean of its divisors is an integer number (8996568).

Almost surely, 2^56549812 is an apocalyptic number.

It is an amenable number.

56549812 is a deficient number, since it is larger than the sum of its proper divisors (51409004).

56549812 is a wasteful number, since it uses less digits than its factorization.

56549812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285238 (or 1285236 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 56549812 is about 7519.9609041537. The cubic root of 56549812 is about 383.8342474017.

The spelling of 56549812 in words is "fifty-six million, five hundred forty-nine thousand, eight hundred twelve".