25089685123 has 2 divisors, whose sum is σ = 25089685124. Its totient is φ = 25089685122.

The previous prime is 25089685091. The next prime is 25089685139. The reversal of 25089685123 is 32158698052.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25089685123 - 2⁵ = 25089685091 is a prime.

It is not a weakly prime, because it can be changed into another prime (25089085123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12544842561 + 12544842562.

It is an arithmetic number, because the mean of its divisors is an integer number (12544842562).

Almost surely, 2^25089685123 is an apocalyptic number.

25089685123 is a deficient number, since it is larger than the sum of its proper divisors (1).

25089685123 is an equidigital number, since it uses as much as digits as its factorization.

25089685123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 25089685123 in words is "twenty-five billion, eighty-nine million, six hundred eighty-five thousand, one hundred twenty-three".