25269457523 has 2 divisors, whose sum is σ = 25269457524. Its totient is φ = 25269457522.

The previous prime is 25269457489. The next prime is 25269457567. The reversal of 25269457523 is 32575496252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25269457523 - 2⁸ = 25269457267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25269057523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12634728761 + 12634728762.

It is an arithmetic number, because the mean of its divisors is an integer number (12634728762).

Almost surely, 2^25269457523 is an apocalyptic number.

25269457523 is a deficient number, since it is larger than the sum of its proper divisors (1).

25269457523 is an equidigital number, since it uses as much as digits as its factorization.

25269457523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536000, while the sum is 50.

The spelling of 25269457523 in words is "twenty-five billion, two hundred sixty-nine million, four hundred fifty-seven thousand, five hundred twenty-three".