53572566464 has 56 divisors (see below), whose sum is σ = 108437403648. Its totient is φ = 26254851840.

The previous prime is 53572566451. The next prime is 53572566469. The reversal of 53572566464 is 46466527535.

53572566464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53572566469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634919 + ... + 714329.

It is an arithmetic number, because the mean of its divisors is an integer number (1936382208).

Almost surely, 2^53572566464 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 53572566464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54218701824).

53572566464 is an abundant number, since it is smaller than the sum of its proper divisors (54864837184).

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

53572566464 is a wasteful number, since it uses less digits than its factorization.

53572566464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79633 (or 79623 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 53.

The spelling of 53572566464 in words is "fifty-three billion, five hundred seventy-two million, five hundred sixty-six thousand, four hundred sixty-four".