55749960 has 96 divisors (see below), whose sum is σ = 207080640. Its totient is φ = 12742272.

The previous prime is 55749937. The next prime is 55750033. The reversal of 55749960 is 6994755.

It is a happy number.

55749960 is a `hidden beast` number, since 557 + 4 + 9 + 96 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8542 + ... + 13581.

It is an arithmetic number, because the mean of its divisors is an integer number (2157090).

Almost surely, 2^55749960 is an apocalyptic number.

It is an amenable number.

55749960 is an abundant number, since it is smaller than the sum of its proper divisors (151330680).

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

55749960 is a wasteful number, since it uses less digits than its factorization.

55749960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22147 (or 22140 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 55749960 is about 7466.5895829354. The cubic root of 55749960 is about 382.0159711167.

The spelling of 55749960 in words is "fifty-five million, seven hundred forty-nine thousand, nine hundred sixty".