53994272656 has 80 divisors (see below), whose sum is σ = 114992640000. Its totient is φ = 24446150784.

The previous prime is 53994272603. The next prime is 53994272663. The reversal of 53994272656 is 65627249935.

It is a self number, because there is not a number n which added to its sum of digits gives 53994272656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15429595 + ... + 15433093.

It is an arithmetic number, because the mean of its divisors is an integer number (1437408000).

Almost surely, 2^53994272656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53994272656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57496320000).

53994272656 is an abundant number, since it is smaller than the sum of its proper divisors (60998367344).

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

53994272656 is a wasteful number, since it uses less digits than its factorization.

53994272656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756 (or 5750 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 58.

The spelling of 53994272656 in words is "fifty-three billion, nine hundred ninety-four million, two hundred seventy-two thousand, six hundred fifty-six".