25295687 has 2 divisors, whose sum is σ = 25295688. Its totient is φ = 25295686.

The previous prime is 25295639. The next prime is 25295689. The reversal of 25295687 is 78659252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25295687 - 2²² = 21101383 is a prime.

Together with 25295689, 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 (25295689) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12647843 + 12647844.

It is an arithmetic number, because the mean of its divisors is an integer number (12647844).

Almost surely, 2^25295687 is an apocalyptic number.

25295687 is a deficient number, since it is larger than the sum of its proper divisors (1).

25295687 is an equidigital number, since it uses as much as digits as its factorization.

25295687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 25295687 is about 5029.4817824504. The cubic root of 25295687 is about 293.5500506204.

The spelling of 25295687 in words is "twenty-five million, two hundred ninety-five thousand, six hundred eighty-seven".