55999064 has 16 divisors (see below), whose sum is σ = 114543720. Its totient is φ = 25454080.

The previous prime is 55999063. The next prime is 55999079. The reversal of 55999064 is 46099955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55999063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318089 + ... + 318264.

Almost surely, 2^55999064 is an apocalyptic number.

It is an amenable number.

55999064 is an abundant number, since it is smaller than the sum of its proper divisors (58544656).

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

55999064 is a wasteful number, since it uses less digits than its factorization.

55999064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636370 (or 636366 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 47.

The square root of 55999064 is about 7483.2522341559. The cubic root of 55999064 is about 382.5841049907.

The spelling of 55999064 in words is "fifty-five million, nine hundred ninety-nine thousand, sixty-four".