25885479 has 4 divisors (see below), whose sum is σ = 34513976. Its totient is φ = 17256984.

The previous prime is 25885427. The next prime is 25885493. The reversal of 25885479 is 97458852.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25885479 - 2⁷ = 25885351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25885499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4314244 + ... + 4314249.

It is an arithmetic number, because the mean of its divisors is an integer number (8628494).

Almost surely, 2^25885479 is an apocalyptic number.

25885479 is a deficient number, since it is larger than the sum of its proper divisors (8628497).

25885479 is an equidigital number, since it uses as much as digits as its factorization.

25885479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8628496.

The product of its digits is 806400, while the sum is 48.

The square root of 25885479 is about 5087.7774125840. Note that the first 3 decimals coincide. The cubic root of 25885479 is about 295.8140076688.

The spelling of 25885479 in words is "twenty-five million, eight hundred eighty-five thousand, four hundred seventy-nine".