25030854517 has 2 divisors, whose sum is σ = 25030854518. Its totient is φ = 25030854516.

The previous prime is 25030854493. The next prime is 25030854539. The reversal of 25030854517 is 71545803052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16163053956 + 8867800561 = 127134^2 + 94169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25030854517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25030854517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25030854817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12515427258 + 12515427259.

It is an arithmetic number, because the mean of its divisors is an integer number (12515427259).

Almost surely, 2^25030854517 is an apocalyptic number.

It is an amenable number.

25030854517 is a deficient number, since it is larger than the sum of its proper divisors (1).

25030854517 is an equidigital number, since it uses as much as digits as its factorization.

25030854517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 25030854517 in words is "twenty-five billion, thirty million, eight hundred fifty-four thousand, five hundred seventeen".