53993888256 has 160 divisors (see below), whose sum is σ = 179337235968. Its totient is φ = 14024355840.

The previous prime is 53993888239. The next prime is 53993888287. The reversal of 53993888256 is 65288839935.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109990 + ... + 346533.

Almost surely, 2^53993888256 is an apocalyptic number.

53993888256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53993888256 is an abundant number, since it is smaller than the sum of its proper divisors (125343347712).

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

53993888256 is a wasteful number, since it uses less digits than its factorization.

53993888256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456562 (or 456546 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 66.

It can be divided in two parts, 53993 and 888256, that added together give a palindrome (942249).

The spelling of 53993888256 in words is "fifty-three billion, nine hundred ninety-three million, eight hundred eighty-eight thousand, two hundred fifty-six".