8572749125 has 8 divisors (see below), whose sum is σ = 10698791064. Its totient is φ = 6858199200.

The previous prime is 8572749089. The next prime is 8572749149. The reversal of 8572749125 is 5219472758.

It can be written as a sum of positive squares in 4 ways, for example, as 1533035716 + 7039713409 = 39154^2 + 83903^2 .

It is not a de Polignac number, because 8572749125 - 2²² = 8568554821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34290872 + ... + 34291121.

It is an arithmetic number, because the mean of its divisors is an integer number (1337348883).

Almost surely, 2^8572749125 is an apocalyptic number.

It is an amenable number.

8572749125 is a deficient number, since it is larger than the sum of its proper divisors (2126041939).

8572749125 is an equidigital number, since it uses as much as digits as its factorization.

8572749125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68582008 (or 68581998 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 50.

The square root of 8572749125 is about 92589.1415069823. The cubic root of 8572749125 is about 2046.6333099630.

The spelling of 8572749125 in words is "eight billion, five hundred seventy-two million, seven hundred forty-nine thousand, one hundred twenty-five".