55666732 has 24 divisors (see below), whose sum is σ = 111867840. Its totient is φ = 23970960.

The previous prime is 55666727. The next prime is 55666757. The reversal of 55666732 is 23766655.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 32458 + ... + 34129.

It is an arithmetic number, because the mean of its divisors is an integer number (4661160).

Almost surely, 2^55666732 is an apocalyptic number.

It is an amenable number.

55666732 is an abundant number, since it is smaller than the sum of its proper divisors (56201108).

55666732 is a wasteful number, since it uses less digits than its factorization.

55666732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66621 (or 66619 counting only the distinct ones).

The product of its digits is 226800, while the sum is 40.

The square root of 55666732 is about 7461.0141401823. The cubic root of 55666732 is about 381.8257751050.

The spelling of 55666732 in words is "fifty-five million, six hundred sixty-six thousand, seven hundred thirty-two".