25120976017 has 2 divisors, whose sum is σ = 25120976018. Its totient is φ = 25120976016.

The previous prime is 25120976011. The next prime is 25120976033. The reversal of 25120976017 is 71067902152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16662679056 + 8458296961 = 129084^2 + 91969^2 .

It is a cyclic number.

It is not a de Polignac number, because 25120976017 - 2³ = 25120976009 is a prime.

It is not a weakly prime, because it can be changed into another prime (25120976011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12560488008 + 12560488009.

It is an arithmetic number, because the mean of its divisors is an integer number (12560488009).

Almost surely, 2^25120976017 is an apocalyptic number.

It is an amenable number.

25120976017 is a deficient number, since it is larger than the sum of its proper divisors (1).

25120976017 is an equidigital number, since it uses as much as digits as its factorization.

25120976017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 25120976017 in words is "twenty-five billion, one hundred twenty million, nine hundred seventy-six thousand, seventeen".