25880025629 has 2 divisors, whose sum is σ = 25880025630. Its totient is φ = 25880025628.

The previous prime is 25880025593. The next prime is 25880025631. The reversal of 25880025629 is 92652008852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13369603129 + 12510422500 = 115627^2 + 111850^2 .

It is a cyclic number.

It is not a de Polignac number, because 25880025629 - 2⁸ = 25880025373 is a prime.

Together with 25880025631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25880025659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12940012814 + 12940012815.

It is an arithmetic number, because the mean of its divisors is an integer number (12940012815).

Almost surely, 2^25880025629 is an apocalyptic number.

It is an amenable number.

25880025629 is a deficient number, since it is larger than the sum of its proper divisors (1).

25880025629 is an equidigital number, since it uses as much as digits as its factorization.

25880025629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 25880025629 in words is "twenty-five billion, eight hundred eighty million, twenty-five thousand, six hundred twenty-nine".