55665730528 has 12 divisors (see below), whose sum is σ = 109591907040. Its totient is φ = 27832865248.

The previous prime is 55665730513. The next prime is 55665730573. The reversal of 55665730528 is 82503756655.

It is a super-2 number, since 2×55665730528² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869777008 + ... + 869777071.

It is an arithmetic number, because the mean of its divisors is an integer number (9132658920).

Almost surely, 2^55665730528 is an apocalyptic number.

It is an amenable number.

55665730528 is a deficient number, since it is larger than the sum of its proper divisors (53926176512).

55665730528 is a wasteful number, since it uses less digits than its factorization.

55665730528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739554089 (or 1739554081 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 55665730528 in words is "fifty-five billion, six hundred sixty-five million, seven hundred thirty thousand, five hundred twenty-eight".