55987492 has 12 divisors (see below), whose sum is σ = 106885296. Its totient is φ = 25448840.

The previous prime is 55987483. The next prime is 55987493. The reversal of 55987492 is 29478955.

It is not an unprimeable number, because it can be changed into a prime (55987493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636178 + ... + 636265.

It is an arithmetic number, because the mean of its divisors is an integer number (8907108).

Almost surely, 2^55987492 is an apocalyptic number.

It is an amenable number.

55987492 is a deficient number, since it is larger than the sum of its proper divisors (50897804).

55987492 is a wasteful number, since it uses less digits than its factorization.

55987492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272458 (or 1272456 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 55987492 is about 7482.4790009729. The cubic root of 55987492 is about 382.5577499772.

The spelling of 55987492 in words is "fifty-five million, nine hundred eighty-seven thousand, four hundred ninety-two".