55730864 has 20 divisors (see below), whose sum is σ = 123404304. Its totient is φ = 23884608.

The previous prime is 55730791. The next prime is 55730903. The reversal of 55730864 is 46803755.

It is a super-3 number, since 3×55730864³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248687 + ... + 248910.

Almost surely, 2^55730864 is an apocalyptic number.

It is an amenable number.

55730864 is an abundant number, since it is smaller than the sum of its proper divisors (67673440).

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

55730864 is a wasteful number, since it uses less digits than its factorization.

55730864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497612 (or 497606 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 55730864 is about 7465.3107102116. The cubic root of 55730864 is about 381.9723489026.

The spelling of 55730864 in words is "fifty-five million, seven hundred thirty thousand, eight hundred sixty-four".