25200979 has 2 divisors, whose sum is σ = 25200980. Its totient is φ = 25200978.

The previous prime is 25200949. The next prime is 25201027. The reversal of 25200979 is 97900252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25200979 - 2⁵ = 25200947 is a prime.

It is not a weakly prime, because it can be changed into another prime (25200949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12600489 + 12600490.

It is an arithmetic number, because the mean of its divisors is an integer number (12600490).

Almost surely, 2^25200979 is an apocalyptic number.

25200979 is a deficient number, since it is larger than the sum of its proper divisors (1).

25200979 is an equidigital number, since it uses as much as digits as its factorization.

25200979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 25200979 is about 5020.0576689915. The cubic root of 25200979 is about 293.1832383227.

The spelling of 25200979 in words is "twenty-five million, two hundred thousand, nine hundred seventy-nine".