55688364 has 96 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 17858880.

The previous prime is 55688351. The next prime is 55688377. The reversal of 55688364 is 46388655.

55688364 is a `hidden beast` number, since 5 + 568 + 83 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (55688351) and next prime (55688377).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520399 + ... + 520505.

It is an arithmetic number, because the mean of its divisors is an integer number (1562400).

Almost surely, 2^55688364 is an apocalyptic number.

55688364 is a gapful number since it is divisible by the number (54) 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 55688364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74995200).

55688364 is an abundant number, since it is smaller than the sum of its proper divisors (94302036).

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

55688364 is a wasteful number, since it uses less digits than its factorization.

55688364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 252 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 55688364 is about 7462.4636682533. The cubic root of 55688364 is about 381.8752276547.

The spelling of 55688364 in words is "fifty-five million, six hundred eighty-eight thousand, three hundred sixty-four".