22655525 has 12 divisors (see below), whose sum is σ = 29062500. Its totient is φ = 17498880.

The previous prime is 22655519. The next prime is 22655531. The reversal of 22655525 is 52555622.

It is an interprime number because it is at equal distance from previous prime (22655519) and next prime (22655531).

It can be written as a sum of positive squares in 6 ways, for example, as 64516 + 22591009 = 254^2 + 4753^2 .

It is not a de Polignac number, because 22655525 - 2¹⁶ = 22589989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22655491 and 22655500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14900 + ... + 16349.

It is an arithmetic number, because the mean of its divisors is an integer number (2421875).

Almost surely, 2^22655525 is an apocalyptic number.

22655525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22655525 is a deficient number, since it is larger than the sum of its proper divisors (6406975).

22655525 is a wasteful number, since it uses less digits than its factorization.

22655525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31288 (or 31283 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 22655525 is about 4759.7820328246. The cubic root of 22655525 is about 282.9597806887.

The spelling of 22655525 in words is "twenty-two million, six hundred fifty-five thousand, five hundred twenty-five".