25674997 has 2 divisors, whose sum is σ = 25674998. Its totient is φ = 25674996.

The previous prime is 25674989. The next prime is 25675007. The reversal of 25674997 is 79947652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13242321 + 12432676 = 3639^2 + 3526^2 .

It is a cyclic number.

It is not a de Polignac number, because 25674997 - 2³ = 25674989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25674997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25674917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12837498 + 12837499.

It is an arithmetic number, because the mean of its divisors is an integer number (12837499).

Almost surely, 2^25674997 is an apocalyptic number.

It is an amenable number.

25674997 is a deficient number, since it is larger than the sum of its proper divisors (1).

25674997 is an equidigital number, since it uses as much as digits as its factorization.

25674997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 25674997 is about 5067.0501280331. The cubic root of 25674997 is about 295.0100427492.

The spelling of 25674997 in words is "twenty-five million, six hundred seventy-four thousand, nine hundred ninety-seven".