25230691 has 2 divisors, whose sum is σ = 25230692. Its totient is φ = 25230690.

The previous prime is 25230679. The next prime is 25230713. The reversal of 25230691 is 19603252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25230691 - 2¹⁷ = 25099619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25230671) 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, 12615345 + 12615346.

It is an arithmetic number, because the mean of its divisors is an integer number (12615346).

Almost surely, 2^25230691 is an apocalyptic number.

25230691 is a deficient number, since it is larger than the sum of its proper divisors (1).

25230691 is an equidigital number, since it uses as much as digits as its factorization.

25230691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 25230691 is about 5023.0161257953. The cubic root of 25230691 is about 293.2984142604.

It can be divided in two parts, 25230 and 691, that added together give a square (25921 = 161²).

The spelling of 25230691 in words is "twenty-five million, two hundred thirty thousand, six hundred ninety-one".