25498916327 has 2 divisors, whose sum is σ = 25498916328. Its totient is φ = 25498916326.

The previous prime is 25498916293. The next prime is 25498916381. The reversal of 25498916327 is 72361989452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25498916327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25498946327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12749458163 + 12749458164.

It is an arithmetic number, because the mean of its divisors is an integer number (12749458164).

Almost surely, 2^25498916327 is an apocalyptic number.

25498916327 is a deficient number, since it is larger than the sum of its proper divisors (1).

25498916327 is an equidigital number, since it uses as much as digits as its factorization.

25498916327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The spelling of 25498916327 in words is "twenty-five billion, four hundred ninety-eight million, nine hundred sixteen thousand, three hundred twenty-seven".