25947560531 has 2 divisors, whose sum is σ = 25947560532. Its totient is φ = 25947560530.

The previous prime is 25947560521. The next prime is 25947560537. The reversal of 25947560531 is 13506574952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25947560531 - 2⁶ = 25947560467 is a prime.

It is a super-2 number, since 2×25947560531² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25947560537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12973780265 + 12973780266.

It is an arithmetic number, because the mean of its divisors is an integer number (12973780266).

Almost surely, 2^25947560531 is an apocalyptic number.

25947560531 is a deficient number, since it is larger than the sum of its proper divisors (1).

25947560531 is an equidigital number, since it uses as much as digits as its factorization.

25947560531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 25947560531 in words is "twenty-five billion, nine hundred forty-seven million, five hundred sixty thousand, five hundred thirty-one".