25489080391 has 2 divisors, whose sum is σ = 25489080392. Its totient is φ = 25489080390.

The previous prime is 25489080377. The next prime is 25489080413. The reversal of 25489080391 is 19308098452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25489080391 - 2¹⁷ = 25488949319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25489080341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12744540195 + 12744540196.

It is an arithmetic number, because the mean of its divisors is an integer number (12744540196).

Almost surely, 2^25489080391 is an apocalyptic number.

25489080391 is a deficient number, since it is larger than the sum of its proper divisors (1).

25489080391 is an equidigital number, since it uses as much as digits as its factorization.

25489080391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 25489080391 in words is "twenty-five billion, four hundred eighty-nine million, eighty thousand, three hundred ninety-one".