55637292 has 12 divisors (see below), whose sum is σ = 129820376. Its totient is φ = 18545760.

The previous prime is 55637291. The next prime is 55637327. The reversal of 55637292 is 29273655.

55637292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55637292² = 6191016522186528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55637292.

It is not an unprimeable number, because it can be changed into a prime (55637291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318209 + ... + 2318232.

Almost surely, 2^55637292 is an apocalyptic number.

It is an amenable number.

55637292 is an abundant number, since it is smaller than the sum of its proper divisors (74183084).

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

55637292 is a wasteful number, since it uses less digits than its factorization.

55637292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636448 (or 4636446 counting only the distinct ones).

The product of its digits is 113400, while the sum is 39.

The square root of 55637292 is about 7459.0409571204. The cubic root of 55637292 is about 381.7584522316.

The spelling of 55637292 in words is "fifty-five million, six hundred thirty-seven thousand, two hundred ninety-two".