25012619 has 2 divisors, whose sum is σ = 25012620. Its totient is φ = 25012618.

The previous prime is 25012613. The next prime is 25012621. The reversal of 25012619 is 91621052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25012619 - 2⁸ = 25012363 is a prime.

It is a super-2 number, since 2×25012619² = 1251262218478322, which contains 22 as substring.

Together with 25012621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25012613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12506309 + 12506310.

It is an arithmetic number, because the mean of its divisors is an integer number (12506310).

Almost surely, 2^25012619 is an apocalyptic number.

25012619 is a deficient number, since it is larger than the sum of its proper divisors (1).

25012619 is an equidigital number, since it uses as much as digits as its factorization.

25012619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 25012619 is about 5001.2617408010. The cubic root of 25012619 is about 292.4509631191.

The spelling of 25012619 in words is "twenty-five million, twelve thousand, six hundred nineteen".