55837872 has 30 divisors (see below), whose sum is σ = 156268892. Its totient is φ = 18612576.

The previous prime is 55837871. The next prime is 55837891. The reversal of 55837872 is 27873855.

It is not an unprimeable number, because it can be changed into a prime (55837871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193738 + ... + 194025.

Almost surely, 2^55837872 is an apocalyptic number.

It is an amenable number.

55837872 is an abundant number, since it is smaller than the sum of its proper divisors (100431020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55837872 is a wasteful number, since it uses less digits than its factorization.

55837872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387777 (or 387768 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 55837872 is about 7472.4742890157. The cubic root of 55837872 is about 382.2166657346.

The spelling of 55837872 in words is "fifty-five million, eight hundred thirty-seven thousand, eight hundred seventy-two".