25898026 has 64 divisors (see below), whose sum is σ = 52254720. Its totient is φ = 9322560.

The previous prime is 25898009. The next prime is 25898027. The reversal of 25898026 is 62089852.

It is a self number, because there is not a number n which added to its sum of digits gives 25898026.

It is not an unprimeable number, because it can be changed into a prime (25898027) 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 31 ways as a sum of consecutive naturals, for example, 154995 + ... + 155161.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^25898026 is an apocalyptic number.

25898026 is an abundant number, since it is smaller than the sum of its proper divisors (26356694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25898026 is a wasteful number, since it uses less digits than its factorization.

25898026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 25898026 is about 5089.0103163582. The cubic root of 25898026 is about 295.8617948063.

The spelling of 25898026 in words is "twenty-five million, eight hundred ninety-eight thousand, twenty-six".