25479099 has 6 divisors (see below), whose sum is σ = 36803156. Its totient is φ = 16986060.

The previous prime is 25479089. The next prime is 25479119. The reversal of 25479099 is 99097452.

It is not a de Polignac number, because 25479099 - 2⁵ = 25479067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25479049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1415497 + ... + 1415514.

Almost surely, 2^25479099 is an apocalyptic number.

25479099 is a deficient number, since it is larger than the sum of its proper divisors (11324057).

25479099 is a wasteful number, since it uses less digits than its factorization.

25479099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831017 (or 2831014 counting only the distinct ones).

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

The square root of 25479099 is about 5047.6825375612. The cubic root of 25479099 is about 294.2578260314.

The spelling of 25479099 in words is "twenty-five million, four hundred seventy-nine thousand, ninety-nine".