25469396531 has 2 divisors, whose sum is σ = 25469396532. Its totient is φ = 25469396530.

The previous prime is 25469396509. The next prime is 25469396567. The reversal of 25469396531 is 13569396452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25469396531 - 2¹⁴ = 25469380147 is a prime.

It is a super-2 number, since 2×25469396531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25469396581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12734698265 + 12734698266.

It is an arithmetic number, because the mean of its divisors is an integer number (12734698266).

Almost surely, 2^25469396531 is an apocalyptic number.

25469396531 is a deficient number, since it is larger than the sum of its proper divisors (1).

25469396531 is an equidigital number, since it uses as much as digits as its factorization.

25469396531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5248800, while the sum is 53.

The spelling of 25469396531 in words is "twenty-five billion, four hundred sixty-nine million, three hundred ninety-six thousand, five hundred thirty-one".