55351864 has 64 divisors (see below), whose sum is σ = 119577600. Its totient is φ = 23846400.

The previous prime is 55351843. The next prime is 55351867. The reversal of 55351864 is 46815355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55351867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79759 + ... + 80449.

It is an arithmetic number, because the mean of its divisors is an integer number (1868400).

Almost surely, 2^55351864 is an apocalyptic number.

It is an amenable number.

55351864 is an abundant number, since it is smaller than the sum of its proper divisors (64225736).

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

55351864 is a wasteful number, since it uses less digits than its factorization.

55351864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 760 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 55351864 is about 7439.8833324186. The cubic root of 55351864 is about 381.1045058375.

The spelling of 55351864 in words is "fifty-five million, three hundred fifty-one thousand, eight hundred sixty-four".