55661832 has 24 divisors (see below), whose sum is σ = 150750990. Its totient is φ = 18553920.

The previous prime is 55661813. The next prime is 55661861. The reversal of 55661832 is 23816655.

55661832 is a `hidden beast` number, since 5 + 5 + 6 + 618 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54375876 + 1285956 = 7374^2 + 1134^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386469 + ... + 386612.

Almost surely, 2^55661832 is an apocalyptic number.

It is an amenable number.

55661832 is an abundant number, since it is smaller than the sum of its proper divisors (95089158).

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

55661832 is a wasteful number, since it uses less digits than its factorization.

55661832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773093 (or 773086 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 55661832 is about 7460.6857593656. The cubic root of 55661832 is about 381.8145715181.

The spelling of 55661832 in words is "fifty-five million, six hundred sixty-one thousand, eight hundred thirty-two".