25461810523 has 2 divisors, whose sum is σ = 25461810524. Its totient is φ = 25461810522.

The previous prime is 25461810511. The next prime is 25461810533. The reversal of 25461810523 is 32501816452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25461810523 is a prime.

It is not a weakly prime, because it can be changed into another prime (25461810533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12730905261 + 12730905262.

It is an arithmetic number, because the mean of its divisors is an integer number (12730905262).

Almost surely, 2^25461810523 is an apocalyptic number.

25461810523 is a deficient number, since it is larger than the sum of its proper divisors (1).

25461810523 is an equidigital number, since it uses as much as digits as its factorization.

25461810523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 25461810523 in words is "twenty-five billion, four hundred sixty-one million, eight hundred ten thousand, five hundred twenty-three".