25675619 has 2 divisors, whose sum is σ = 25675620. Its totient is φ = 25675618.

The previous prime is 25675603. The next prime is 25675649. The reversal of 25675619 is 91657652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25675619 - 2⁴ = 25675603 is a prime.

It is a super-2 number, since 2×25675619² = 1318474822066322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25675649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12837809 + 12837810.

It is an arithmetic number, because the mean of its divisors is an integer number (12837810).

Almost surely, 2^25675619 is an apocalyptic number.

25675619 is a deficient number, since it is larger than the sum of its proper divisors (1).

25675619 is an equidigital number, since it uses as much as digits as its factorization.

25675619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 25675619 is about 5067.1115045951. Note that the first 3 decimals coincide. The cubic root of 25675619 is about 295.0124250249.

The spelling of 25675619 in words is "twenty-five million, six hundred seventy-five thousand, six hundred nineteen".