25522266 has 32 divisors (see below), whose sum is σ = 63641088. Its totient is φ = 6629040.

The previous prime is 25522229. The next prime is 25522271. The reversal of 25522266 is 66222552.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27160 + ... + 28083.

It is an arithmetic number, because the mean of its divisors is an integer number (1988784).

Almost surely, 2^25522266 is an apocalyptic number.

25522266 is an abundant number, since it is smaller than the sum of its proper divisors (38118822).

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

25522266 is a wasteful number, since it uses less digits than its factorization.

25522266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55266.

The product of its digits is 14400, while the sum is 30.

The square root of 25522266 is about 5051.9566506454. The cubic root of 25522266 is about 294.4239106707.

The spelling of 25522266 in words is "twenty-five million, five hundred twenty-two thousand, two hundred sixty-six".