75257725572 has 18 divisors (see below), whose sum is σ = 190234806398. Its totient is φ = 25085908512.

The previous prime is 75257725553. The next prime is 75257725573. The reversal of 75257725572 is 27552775257.

75257725572 is a `hidden beast` number, since 75 + 257 + 7 + 255 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 73585242756 + 1672482816 = 271266^2 + 40896^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (75257725573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1045246153 + ... + 1045246224.

Almost surely, 2^75257725572 is an apocalyptic number.

It is an amenable number.

75257725572 is an abundant number, since it is smaller than the sum of its proper divisors (114977080826).

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

75257725572 is a wasteful number, since it uses less digits than its factorization.

75257725572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090492387 (or 2090492382 counting only the distinct ones).

The product of its digits is 12005000, while the sum is 54.

The spelling of 75257725572 in words is "seventy-five billion, two hundred fifty-seven million, seven hundred twenty-five thousand, five hundred seventy-two".