55865376 has 120 divisors (see below), whose sum is σ = 187830720. Its totient is φ = 15956352.

The previous prime is 55865371. The next prime is 55865387. The reversal of 55865376 is 67356855.

55865376 is a `hidden beast` number, since 558 + 65 + 37 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (55865371) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16605 + ... + 19683.

It is an arithmetic number, because the mean of its divisors is an integer number (1565256).

Almost surely, 2^55865376 is an apocalyptic number.

55865376 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55865376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93915360).

55865376 is an abundant number, since it is smaller than the sum of its proper divisors (131965344).

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

55865376 is a wasteful number, since it uses less digits than its factorization.

55865376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108 (or 3091 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 55865376 is about 7474.3144167208. The cubic root of 55865376 is about 382.2794114496.

The spelling of 55865376 in words is "fifty-five million, eight hundred sixty-five thousand, three hundred seventy-six".