55631732 has 24 divisors (see below), whose sum is σ = 108229632. Its totient is φ = 24847200.

The previous prime is 55631659. The next prime is 55631759. The reversal of 55631732 is 23713655.

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, 15644 + ... + 18867.

It is an arithmetic number, because the mean of its divisors is an integer number (4509568).

Almost surely, 2^55631732 is an apocalyptic number.

55631732 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55631732 is a deficient number, since it is larger than the sum of its proper divisors (52597900).

55631732 is a wasteful number, since it uses less digits than its factorization.

55631732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34559 (or 34557 counting only the distinct ones).

The product of its digits is 18900, while the sum is 32.

The square root of 55631732 is about 7458.6682457393. The cubic root of 55631732 is about 381.7457350556.

The spelling of 55631732 in words is "fifty-five million, six hundred thirty-one thousand, seven hundred thirty-two".