55831536 has 60 divisors (see below), whose sum is σ = 165449232. Its totient is φ = 17515008.

The previous prime is 55831499. The next prime is 55831537. The reversal of 55831536 is 63513855.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55831536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55831537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8956 + ... + 13851.

Almost surely, 2^55831536 is an apocalyptic number.

It is an amenable number.

55831536 is an abundant number, since it is smaller than the sum of its proper divisors (109617696).

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

55831536 is a wasteful number, since it uses less digits than its factorization.

55831536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22838 (or 22829 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 55831536 is about 7472.0503210297. The cubic root of 55831536 is about 382.2022083045.

The spelling of 55831536 in words is "fifty-five million, eight hundred thirty-one thousand, five hundred thirty-six".