22525266 has 32 divisors (see below), whose sum is σ = 46169280. Its totient is φ = 7324416.

The previous prime is 22525259. The next prime is 22525271. The reversal of 22525266 is 66252522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54870 + ... + 55278.

It is an arithmetic number, because the mean of its divisors is an integer number (1442790).

Almost surely, 2^22525266 is an apocalyptic number.

22525266 is an abundant number, since it is smaller than the sum of its proper divisors (23644014).

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

22525266 is a wasteful number, since it uses less digits than its factorization.

22525266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

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

The square root of 22525266 is about 4746.0790132487. The cubic root of 22525266 is about 282.4164412072.

Adding to 22525266 its reverse (66252522), we get a palindrome (88777788).

It can be divided in two parts, 22525 and 266, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 22525266 in words is "twenty-two million, five hundred twenty-five thousand, two hundred sixty-six".