55807632 has 60 divisors (see below), whose sum is σ = 156686400. Its totient is φ = 18542784.

The previous prime is 55807613. The next prime is 55807639. The reversal of 55807632 is 23670855.

55807632 is a `hidden beast` number, since 5 + 580 + 76 + 3 + 2 = 666.

It is a super-2 number, since 2×55807632² = 6228983578894848, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (55807639) 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, 85933 + ... + 86579.

It is an arithmetic number, because the mean of its divisors is an integer number (2611440).

Almost surely, 2^55807632 is an apocalyptic number.

It is an amenable number.

55807632 is an abundant number, since it is smaller than the sum of its proper divisors (100878768).

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

55807632 is a wasteful number, since it uses less digits than its factorization.

55807632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55807632 is about 7470.4505888199. The cubic root of 55807632 is about 382.1476545139.

The spelling of 55807632 in words is "fifty-five million, eight hundred seven thousand, six hundred thirty-two".