25713628531 has 2 divisors, whose sum is σ = 25713628532. Its totient is φ = 25713628530.

The previous prime is 25713628519. The next prime is 25713628553. The reversal of 25713628531 is 13582631752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25713628531 - 2²⁵ = 25680074099 is a prime.

It is a super-2 number, since 2×25713628531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25713668531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12856814265 + 12856814266.

It is an arithmetic number, because the mean of its divisors is an integer number (12856814266).

Almost surely, 2^25713628531 is an apocalyptic number.

25713628531 is a deficient number, since it is larger than the sum of its proper divisors (1).

25713628531 is an equidigital number, since it uses as much as digits as its factorization.

25713628531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The spelling of 25713628531 in words is "twenty-five billion, seven hundred thirteen million, six hundred twenty-eight thousand, five hundred thirty-one".