55980172 has 18 divisors (see below), whose sum is σ = 101234364. Its totient is φ = 27085320.

The previous prime is 55980161. The next prime is 55980217. The reversal of 55980172 is 27108955.

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 5 ways as a sum of consecutive naturals, for example, 3438 + ... + 11125.

Almost surely, 2^55980172 is an apocalyptic number.

It is an amenable number.

55980172 is a deficient number, since it is larger than the sum of its proper divisors (45254192).

55980172 is a wasteful number, since it uses less digits than its factorization.

55980172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14629 (or 14596 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 55980172 is about 7481.9898422813. The cubic root of 55980172 is about 382.5410769390.

The spelling of 55980172 in words is "fifty-five million, nine hundred eighty thousand, one hundred seventy-two".