55973972 has 24 divisors (see below), whose sum is σ = 101418240. Its totient is φ = 27002880.

The previous prime is 55973923. The next prime is 55973993. The reversal of 55973972 is 27937955.

It is a congruent number.

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, 72404 + ... + 73172.

It is an arithmetic number, because the mean of its divisors is an integer number (4225760).

Almost surely, 2^55973972 is an apocalyptic number.

It is an amenable number.

55973972 is a deficient number, since it is larger than the sum of its proper divisors (45444268).

55973972 is a wasteful number, since it uses less digits than its factorization.

55973972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its digits is 595350, while the sum is 47.

The square root of 55973972 is about 7481.5755025262. The cubic root of 55973972 is about 382.5269538299.

The spelling of 55973972 in words is "fifty-five million, nine hundred seventy-three thousand, nine hundred seventy-two".