83257507572 has 24 divisors (see below), whose sum is σ = 195504894816. Its totient is φ = 27575734368.

The previous prime is 83257507549. The next prime is 83257507609. The reversal of 83257507572 is 27570575238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22094058 + ... + 22097825.

It is an arithmetic number, because the mean of its divisors is an integer number (8146037284).

Almost surely, 2^83257507572 is an apocalyptic number.

It is an amenable number.

83257507572 is an abundant number, since it is smaller than the sum of its proper divisors (112247387244).

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

83257507572 is a wasteful number, since it uses less digits than its factorization.

83257507572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44192047 (or 44192045 counting only the distinct ones).

The product of its (nonzero) digits is 4116000, while the sum is 51.

The spelling of 83257507572 in words is "eighty-three billion, two hundred fifty-seven million, five hundred seven thousand, five hundred seventy-two".