25574731079 has 4 divisors (see below), whose sum is σ = 25601070600. Its totient is φ = 25548391560.

The previous prime is 25574731057. The next prime is 25574731157. The reversal of 25574731079 is 97013747552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25574731079 - 2²⁰ = 25573682503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25574731019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13168304 + ... + 13170245.

It is an arithmetic number, because the mean of its divisors is an integer number (6400267650).

Almost surely, 2^25574731079 is an apocalyptic number.

25574731079 is a deficient number, since it is larger than the sum of its proper divisors (26339521).

25574731079 is an equidigital number, since it uses as much as digits as its factorization.

25574731079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26339520.

The product of its (nonzero) digits is 1852200, while the sum is 50.

It can be divided in two parts, 2557473 and 1079, that added together give a palindrome (2558552).

The spelling of 25574731079 in words is "twenty-five billion, five hundred seventy-four million, seven hundred thirty-one thousand, seventy-nine".