25123379 has 2 divisors, whose sum is σ = 25123380. Its totient is φ = 25123378.

The previous prime is 25123369. The next prime is 25123381. The reversal of 25123379 is 97332152.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25123379 is a prime.

Together with 25123381, 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 (25123369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12561689 + 12561690.

It is an arithmetic number, because the mean of its divisors is an integer number (12561690).

Almost surely, 2^25123379 is an apocalyptic number.

25123379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25123379 is an equidigital number, since it uses as much as digits as its factorization.

25123379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 32.

The square root of 25123379 is about 5012.3227150693. The cubic root of 25123379 is about 292.8820011986.

The spelling of 25123379 in words is "twenty-five million, one hundred twenty-three thousand, three hundred seventy-nine".