25264527131 has 4 divisors (see below), whose sum is σ = 25287309600. Its totient is φ = 25241744664.

The previous prime is 25264527103. The next prime is 25264527143. The reversal of 25264527131 is 13172546252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25264527131 is a prime.

It is a super-2 number, since 2×25264527131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25264527931) 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, 11389571 + ... + 11391788.

It is an arithmetic number, because the mean of its divisors is an integer number (6321827400).

Almost surely, 2^25264527131 is an apocalyptic number.

25264527131 is a deficient number, since it is larger than the sum of its proper divisors (22782469).

25264527131 is a wasteful number, since it uses less digits than its factorization.

25264527131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22782468.

The product of its digits is 100800, while the sum is 38.

The spelling of 25264527131 in words is "twenty-five billion, two hundred sixty-four million, five hundred twenty-seven thousand, one hundred thirty-one".