25949079 has 40 divisors (see below), whose sum is σ = 43976240. Its totient is φ = 15116544.

The previous prime is 25949071. The next prime is 25949101. The reversal of 25949079 is 97094952.

It is not a de Polignac number, because 25949079 - 2³ = 25949071 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25949071) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19359 + ... + 20655.

It is an arithmetic number, because the mean of its divisors is an integer number (1099406).

Almost surely, 2^25949079 is an apocalyptic number.

25949079 is a deficient number, since it is larger than the sum of its proper divisors (18027161).

25949079 is a wasteful number, since it uses less digits than its factorization.

25949079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 25949079 is about 5094.0238515343. The cubic root of 25949079 is about 296.0560788258.

The spelling of 25949079 in words is "twenty-five million, nine hundred forty-nine thousand, seventy-nine".