25952390 has 16 divisors (see below), whose sum is σ = 48325680. Its totient is φ = 10022880.

The previous prime is 25952359. The next prime is 25952411. The reversal of 25952390 is 9325952.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25952390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44456 + ... + 45035.

It is an arithmetic number, because the mean of its divisors is an integer number (3020355).

Almost surely, 2^25952390 is an apocalyptic number.

25952390 is a deficient number, since it is larger than the sum of its proper divisors (22373290).

25952390 is a wasteful number, since it uses less digits than its factorization.

25952390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89527.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 25952390 is about 5094.3488298310. The cubic root of 25952390 is about 296.0686701525.

The spelling of 25952390 in words is "twenty-five million, nine hundred fifty-two thousand, three hundred ninety".