55371872 has 12 divisors (see below), whose sum is σ = 109013436. Its totient is φ = 27685920.

The previous prime is 55371857. The next prime is 55371889. The reversal of 55371872 is 27817355.

It is a happy number.

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 as a sum of consecutive naturals, namely, 865154 + ... + 865217.

It is an arithmetic number, because the mean of its divisors is an integer number (9084453).

Almost surely, 2^55371872 is an apocalyptic number.

It is an amenable number.

55371872 is a deficient number, since it is larger than the sum of its proper divisors (53641564).

55371872 is a wasteful number, since it uses less digits than its factorization.

55371872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730381 (or 1730373 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 55371872 is about 7441.2278556701. The cubic root of 55371872 is about 381.1504194998.

The spelling of 55371872 in words is "fifty-five million, three hundred seventy-one thousand, eight hundred seventy-two".