53989765452 has 288 divisors, whose sum is σ = 169261747200. Its totient is φ = 14454074880.

The previous prime is 53989765391. The next prime is 53989765541. The reversal of 53989765452 is 25456798935.

53989765452 is a `hidden beast` number, since 5 + 3 + 9 + 89 + 7 + 6 + 545 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 53989765452.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65283463 + ... + 65284289.

It is an arithmetic number, because the mean of its divisors is an integer number (587714400).

Almost surely, 2^53989765452 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 53989765452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84630873600).

53989765452 is an abundant number, since it is smaller than the sum of its proper divisors (115271981748).

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

53989765452 is a wasteful number, since it uses less digits than its factorization.

53989765452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1167 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 53989765452 in words is "fifty-three billion, nine hundred eighty-nine million, seven hundred sixty-five thousand, four hundred fifty-two".