25930643 has 2 divisors, whose sum is σ = 25930644. Its totient is φ = 25930642.

The previous prime is 25930631. The next prime is 25930651. The reversal of 25930643 is 34603952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25930643 - 2⁶ = 25930579 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25930613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12965321 + 12965322.

It is an arithmetic number, because the mean of its divisors is an integer number (12965322).

Almost surely, 2^25930643 is an apocalyptic number.

25930643 is a deficient number, since it is larger than the sum of its proper divisors (1).

25930643 is an equidigital number, since it uses as much as digits as its factorization.

25930643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 25930643 is about 5092.2139585842. The cubic root of 25930643 is about 295.9859493878.

The spelling of 25930643 in words is "twenty-five million, nine hundred thirty thousand, six hundred forty-three".