25208923 has 2 divisors, whose sum is σ = 25208924. Its totient is φ = 25208922.

The previous prime is 25208903. The next prime is 25208927. The reversal of 25208923 is 32980252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25208923 is a prime.

It is not a weakly prime, because it can be changed into another prime (25208927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12604461 + 12604462.

It is an arithmetic number, because the mean of its divisors is an integer number (12604462).

Almost surely, 2^25208923 is an apocalyptic number.

25208923 is a deficient number, since it is larger than the sum of its proper divisors (1).

25208923 is an equidigital number, since it uses as much as digits as its factorization.

25208923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 25208923 is about 5020.8488326178. The cubic root of 25208923 is about 293.2140413980.

The spelling of 25208923 in words is "twenty-five million, two hundred eight thousand, nine hundred twenty-three".