25917030914431 has 2 divisors, whose sum is σ = 25917030914432. Its totient is φ = 25917030914430.

The previous prime is 25917030914399. The next prime is 25917030914477. The reversal of 25917030914431 is 13441903071952.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25917030914431 - 2⁵ = 25917030914399 is a prime.

It is a super-2 number, since 2×25917030914431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25917030915431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12958515457215 + 12958515457216.

It is an arithmetic number, because the mean of its divisors is an integer number (12958515457216).

Almost surely, 2^{25917030914431} is an apocalyptic number.

25917030914431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25917030914431 is an equidigital number, since it uses as much as digits as its factorization.

25917030914431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 25917030914431 in words is "twenty-five trillion, nine hundred seventeen billion, thirty million, nine hundred fourteen thousand, four hundred thirty-one".