52856521870722 has 64 divisors (see below), whose sum is σ = 114537904588800. Its totient is φ = 16196320836864.

The previous prime is 52856521870721. The next prime is 52856521870729. The reversal of 52856521870722 is 22707812565825.

It is a super-2 number, since 2×52856521870722² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52856521870721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165627003 + ... + 165945825.

It is an arithmetic number, because the mean of its divisors is an integer number (1789654759200).

Almost surely, 2^{52856521870722} is an apocalyptic number.

52856521870722 is an abundant number, since it is smaller than the sum of its proper divisors (61681382718078).

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

52856521870722 is a wasteful number, since it uses less digits than its factorization.

52856521870722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356687.

The product of its (nonzero) digits is 37632000, while the sum is 60.

The spelling of 52856521870722 in words is "fifty-two trillion, eight hundred fifty-six billion, five hundred twenty-one million, eight hundred seventy thousand, seven hundred twenty-two".