25984879 has 2 divisors, whose sum is σ = 25984880. Its totient is φ = 25984878.

The previous prime is 25984867. The next prime is 25984883. The reversal of 25984879 is 97848952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25984879 - 2¹⁵ = 25952111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25985879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12992439 + 12992440.

It is an arithmetic number, because the mean of its divisors is an integer number (12992440).

Almost surely, 2^25984879 is an apocalyptic number.

25984879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25984879 is an equidigital number, since it uses as much as digits as its factorization.

25984879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 25984879 is about 5097.5365619091. The cubic root of 25984879 is about 296.1921650588.

The spelling of 25984879 in words is "twenty-five million, nine hundred eighty-four thousand, eight hundred seventy-nine".