25068691 has 2 divisors, whose sum is σ = 25068692. Its totient is φ = 25068690.

The previous prime is 25068683. The next prime is 25068697. The reversal of 25068691 is 19686052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25068691 - 2³ = 25068683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25068691.

It is not a weakly prime, because it can be changed into another prime (25068697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12534345 + 12534346.

It is an arithmetic number, because the mean of its divisors is an integer number (12534346).

Almost surely, 2^25068691 is an apocalyptic number.

25068691 is a deficient number, since it is larger than the sum of its proper divisors (1).

25068691 is an equidigital number, since it uses as much as digits as its factorization.

25068691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 25068691 is about 5006.8643880177. The cubic root of 25068691 is about 292.6693338544.

The spelling of 25068691 in words is "twenty-five million, sixty-eight thousand, six hundred ninety-one".