25331879 has 2 divisors, whose sum is σ = 25331880. Its totient is φ = 25331878.

The previous prime is 25331851. The next prime is 25331881. The reversal of 25331879 is 97813352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25331879 - 2¹⁶ = 25266343 is a prime.

It is a Sophie Germain prime.

Together with 25331881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25331899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12665939 + 12665940.

It is an arithmetic number, because the mean of its divisors is an integer number (12665940).

Almost surely, 2^25331879 is an apocalyptic number.

25331879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25331879 is an equidigital number, since it uses as much as digits as its factorization.

25331879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 25331879 is about 5033.0784814068. The cubic root of 25331879 is about 293.6899835740.

The spelling of 25331879 in words is "twenty-five million, three hundred thirty-one thousand, eight hundred seventy-nine".