25490959 has 16 divisors (see below), whose sum is σ = 29016064. Its totient is φ = 22226400.

The previous prime is 25490953. The next prime is 25490963. The reversal of 25490959 is 95909452.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25490959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25490953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16594 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (1813504).

Almost surely, 2^25490959 is an apocalyptic number.

25490959 is a deficient number, since it is larger than the sum of its proper divisors (3525105).

25490959 is a wasteful number, since it uses less digits than its factorization.

25490959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 25490959 is about 5048.8571974260. The cubic root of 25490959 is about 294.3034759511.

The spelling of 25490959 in words is "twenty-five million, four hundred ninety thousand, nine hundred fifty-nine".