22065525 has 36 divisors (see below), whose sum is σ = 39776100. Its totient is φ = 11692800.

The previous prime is 22065481. The next prime is 22065553. The reversal of 22065525 is 52556022.

22065525 is a `hidden beast` number, since 2 + 2 + 0 + 655 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 106929 + 21958596 = 327^2 + 4686^2 .

It is not a de Polignac number, because 22065525 - 2¹⁴ = 22049141 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 63051 + ... + 63399.

Almost surely, 2^22065525 is an apocalyptic number.

22065525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22065525 is a deficient number, since it is larger than the sum of its proper divisors (17710575).

22065525 is a wasteful number, since it uses less digits than its factorization.

22065525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 22065525 is about 4697.3955549858. The cubic root of 22065525 is about 280.4818446503.

The spelling of 22065525 in words is "twenty-two million, sixty-five thousand, five hundred twenty-five".