25869994 has 12 divisors (see below), whose sum is σ = 39190086. Its totient is φ = 12807872.

The previous prime is 25869979. The next prime is 25870003. The reversal of 25869994 is 49996852.

It can be written as a sum of positive squares in 3 ways, for example, as 619369 + 25250625 = 787^2 + 5025^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25032 + ... + 26044.

Almost surely, 2^25869994 is an apocalyptic number.

25869994 is a deficient number, since it is larger than the sum of its proper divisors (13320092).

25869994 is a wasteful number, since it uses less digits than its factorization.

25869994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1128 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The square root of 25869994 is about 5086.2554005870. The cubic root of 25869994 is about 295.7550094222.

The spelling of 25869994 in words is "twenty-five million, eight hundred sixty-nine thousand, nine hundred ninety-four".