55312536 has 16 divisors (see below), whose sum is σ = 138281400. Its totient is φ = 18437504.

The previous prime is 55312529. The next prime is 55312547. The reversal of 55312536 is 63521355.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152321 + ... + 1152368.

Almost surely, 2^55312536 is an apocalyptic number.

It is an amenable number.

55312536 is an abundant number, since it is smaller than the sum of its proper divisors (82968864).

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

55312536 is a wasteful number, since it uses less digits than its factorization.

55312536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304698 (or 2304694 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 55312536 is about 7437.2398105749. The cubic root of 55312536 is about 381.0142250529.

The spelling of 55312536 in words is "fifty-five million, three hundred twelve thousand, five hundred thirty-six".