25040763090913 has 2 divisors, whose sum is σ = 25040763090914. Its totient is φ = 25040763090912.

The previous prime is 25040763090869. The next prime is 25040763090919. The reversal of 25040763090913 is 31909036704052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20981090182144 + 4059672908769 = 4580512^2 + 2014863^2 .

It is a cyclic number.

It is not a de Polignac number, because 25040763090913 - 2²⁹ = 25040226220001 is a prime.

It is not a weakly prime, because it can be changed into another prime (25040763090919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12520381545456 + 12520381545457.

It is an arithmetic number, because the mean of its divisors is an integer number (12520381545457).

Almost surely, 2^{25040763090913} is an apocalyptic number.

It is an amenable number.

25040763090913 is a deficient number, since it is larger than the sum of its proper divisors (1).

25040763090913 is an equidigital number, since it uses as much as digits as its factorization.

25040763090913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 49.

Adding to 25040763090913 its reverse (31909036704052), we get a palindrome (56949799794965).

The spelling of 25040763090913 in words is "twenty-five trillion, forty billion, seven hundred sixty-three million, ninety thousand, nine hundred thirteen".