25125979 has 2 divisors, whose sum is σ = 25125980. Its totient is φ = 25125978.

The previous prime is 25125973. The next prime is 25126033. The reversal of 25125979 is 97952152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25125979 - 2⁷ = 25125851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25125973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12562989 + 12562990.

It is an arithmetic number, because the mean of its divisors is an integer number (12562990).

Almost surely, 2^25125979 is an apocalyptic number.

25125979 is a deficient number, since it is larger than the sum of its proper divisors (1).

25125979 is an equidigital number, since it uses as much as digits as its factorization.

25125979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 40.

The square root of 25125979 is about 5012.5820691536. The cubic root of 25125979 is about 292.8921042310.

The spelling of 25125979 in words is "twenty-five million, one hundred twenty-five thousand, nine hundred seventy-nine".