25646226 has 16 divisors (see below), whose sum is σ = 51560544. Its totient is φ = 8504064.

The previous prime is 25646213. The next prime is 25646227. The reversal of 25646226 is 62264652.

It is not an unprimeable number, because it can be changed into a prime (25646227) 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, 9916 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (3222534).

Almost surely, 2^25646226 is an apocalyptic number.

25646226 is an abundant number, since it is smaller than the sum of its proper divisors (25914318).

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

25646226 is a wasteful number, since it uses less digits than its factorization.

25646226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22345.

The product of its digits is 34560, while the sum is 33.

The square root of 25646226 is about 5064.2103036900. The cubic root of 25646226 is about 294.8998070164.

The spelling of 25646226 in words is "twenty-five million, six hundred forty-six thousand, two hundred twenty-six".