25225919 has 2 divisors, whose sum is σ = 25225920. Its totient is φ = 25225918.

The previous prime is 25225913. The next prime is 25225927. The reversal of 25225919 is 91952252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25225919 - 2⁴ = 25225903 is a prime.

It is a super-2 number, since 2×25225919² = 1272693978789122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25225913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12612959 + 12612960.

It is an arithmetic number, because the mean of its divisors is an integer number (12612960).

Almost surely, 2^25225919 is an apocalyptic number.

25225919 is a deficient number, since it is larger than the sum of its proper divisors (1).

25225919 is an equidigital number, since it uses as much as digits as its factorization.

25225919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 35.

The square root of 25225919 is about 5022.5410899265. The cubic root of 25225919 is about 293.2799221222.

The spelling of 25225919 in words is "twenty-five million, two hundred twenty-five thousand, nine hundred nineteen".