25131419 has 2 divisors, whose sum is σ = 25131420. Its totient is φ = 25131418.

The previous prime is 25131413. The next prime is 25131437. The reversal of 25131419 is 91413152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25131419 - 2²⁰ = 24082843 is a prime.

It is a super-2 number, since 2×25131419² = 1263176441907122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25131413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565709 + 12565710.

It is an arithmetic number, because the mean of its divisors is an integer number (12565710).

Almost surely, 2^25131419 is an apocalyptic number.

25131419 is a deficient number, since it is larger than the sum of its proper divisors (1).

25131419 is an equidigital number, since it uses as much as digits as its factorization.

25131419 is an evil number, because the sum of its binary digits is even.

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

The square root of 25131419 is about 5013.1246742925. The cubic root of 25131419 is about 292.9132406289.

The spelling of 25131419 in words is "twenty-five million, one hundred thirty-one thousand, four hundred nineteen".