52397455572 has 432 divisors, whose sum is σ = 173114008704. Its totient is φ = 13208832000.

The previous prime is 52397455559. The next prime is 52397455609. The reversal of 52397455572 is 27555479325.

52397455572 is a `hidden beast` number, since 5 + 23 + 9 + 7 + 45 + 5 + 572 = 666.

Its product of digits (13230000) is a multiple of the sum of its prime factors (700).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 100570672 + ... + 100571192.

It is an arithmetic number, because the mean of its divisors is an integer number (400726872).

Almost surely, 2^52397455572 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 52397455572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86557004352).

52397455572 is an abundant number, since it is smaller than the sum of its proper divisors (120716553132).

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

52397455572 is a wasteful number, since it uses less digits than its factorization.

52397455572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 688 counting only the distinct ones).

The product of its digits is 13230000, while the sum is 54.

The spelling of 52397455572 in words is "fifty-two billion, three hundred ninety-seven million, four hundred fifty-five thousand, five hundred seventy-two".