25996404 has 24 divisors (see below), whose sum is σ = 69323968. Its totient is φ = 7427520.

The previous prime is 25996393. The next prime is 25996423. The reversal of 25996404 is 40469952.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154657 + ... + 154824.

Almost surely, 2^25996404 is an apocalyptic number.

It is an amenable number.

25996404 is an abundant number, since it is smaller than the sum of its proper divisors (43327564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25996404 is a wasteful number, since it uses less digits than its factorization.

25996404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309495 (or 309493 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 25996404 is about 5098.6668845886. Note that the first 3 decimals coincide. The cubic root of 25996404 is about 296.2359483445.

The spelling of 25996404 in words is "twenty-five million, nine hundred ninety-six thousand, four hundred four".