55917532 has 48 divisors (see below), whose sum is σ = 113258880. Its totient is φ = 23889600.

The previous prime is 55917527. The next prime is 55917553. The reversal of 55917532 is 23571955.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55917491 and 55917500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176238 + ... + 176554.

It is an arithmetic number, because the mean of its divisors is an integer number (2359560).

Almost surely, 2^55917532 is an apocalyptic number.

It is an amenable number.

55917532 is an abundant number, since it is smaller than the sum of its proper divisors (57341348).

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

55917532 is a wasteful number, since it uses less digits than its factorization.

55917532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

The product of its digits is 47250, while the sum is 37.

The square root of 55917532 is about 7477.8026184167. The cubic root of 55917532 is about 382.3983399933.

The spelling of 55917532 in words is "fifty-five million, nine hundred seventeen thousand, five hundred thirty-two".