25415903 has 2 divisors, whose sum is σ = 25415904. Its totient is φ = 25415902.

The previous prime is 25415893. The next prime is 25415909. The reversal of 25415903 is 30951452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25415903 - 2¹⁴ = 25399519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25415909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12707951 + 12707952.

It is an arithmetic number, because the mean of its divisors is an integer number (12707952).

Almost surely, 2^25415903 is an apocalyptic number.

25415903 is a deficient number, since it is larger than the sum of its proper divisors (1).

25415903 is an equidigital number, since it uses as much as digits as its factorization.

25415903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 25415903 is about 5041.4187487254. The cubic root of 25415903 is about 294.0143413184.

The spelling of 25415903 in words is "twenty-five million, four hundred fifteen thousand, nine hundred three".