25908490 has 16 divisors (see below), whose sum is σ = 46731240. Its totient is φ = 10342080.

The previous prime is 25908461. The next prime is 25908497. The reversal of 25908490 is 9480952.

It can be written as a sum of positive squares in 4 ways, for example, as 13227769 + 12680721 = 3637^2 + 3561^2 .

It is not an unprimeable number, because it can be changed into a prime (25908497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3016 + ... + 7804.

Almost surely, 2^25908490 is an apocalyptic number.

25908490 is a deficient number, since it is larger than the sum of its proper divisors (20822750).

25908490 is a wasteful number, since it uses less digits than its factorization.

25908490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 25908490 is about 5090.0383102684. The cubic root of 25908490 is about 295.9016367226.

The spelling of 25908490 in words is "twenty-five million, nine hundred eight thousand, four hundred ninety".