25690994 has 12 divisors (see below), whose sum is σ = 44828334. Its totient is φ = 11010384.

The previous prime is 25690993. The next prime is 25690997. The reversal of 25690994 is 49909652.

It can be written as a sum of positive squares in only one way, i.e., 12996025 + 12694969 = 3605^2 + 3563^2 .

It is not an unprimeable number, because it can be changed into a prime (25690991) 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, 130979 + ... + 131174.

Almost surely, 2^25690994 is an apocalyptic number.

25690994 is a deficient number, since it is larger than the sum of its proper divisors (19137340).

25690994 is a wasteful number, since it uses less digits than its factorization.

25690994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262169 (or 262162 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 25690994 is about 5068.6284140781. The cubic root of 25690994 is about 295.0712994375.

The spelling of 25690994 in words is "twenty-five million, six hundred ninety thousand, nine hundred ninety-four".