25479967 has 2 divisors, whose sum is σ = 25479968. Its totient is φ = 25479966.

The previous prime is 25479953. The next prime is 25480027. The reversal of 25479967 is 76997452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25479967 - 2¹¹ = 25477919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25479967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25479907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12739983 + 12739984.

It is an arithmetic number, because the mean of its divisors is an integer number (12739984).

Almost surely, 2^25479967 is an apocalyptic number.

25479967 is a deficient number, since it is larger than the sum of its proper divisors (1).

25479967 is an equidigital number, since it uses as much as digits as its factorization.

25479967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 25479967 is about 5047.7685168795. The cubic root of 25479967 is about 294.2611675009.

The spelling of 25479967 in words is "twenty-five million, four hundred seventy-nine thousand, nine hundred sixty-seven".