25231304459 has 2 divisors, whose sum is σ = 25231304460. Its totient is φ = 25231304458.

The previous prime is 25231304453. The next prime is 25231304509. The reversal of 25231304459 is 95440313252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25231304459 is a prime.

It is not a weakly prime, because it can be changed into another prime (25231304453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12615652229 + 12615652230.

It is an arithmetic number, because the mean of its divisors is an integer number (12615652230).

Almost surely, 2^25231304459 is an apocalyptic number.

25231304459 is a deficient number, since it is larger than the sum of its proper divisors (1).

25231304459 is an equidigital number, since it uses as much as digits as its factorization.

25231304459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 25231304459 in words is "twenty-five billion, two hundred thirty-one million, three hundred four thousand, four hundred fifty-nine".