22727525 has 12 divisors (see below), whose sum is σ = 28464324. Its totient is φ = 18000000.

The previous prime is 22727501. The next prime is 22727527. The reversal of 22727525 is 52572722.

It can be written as a sum of positive squares in 6 ways, for example, as 12769 + 22714756 = 113^2 + 4766^2 .

It is not a de Polignac number, because 22727525 - 2¹² = 22723429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22727491 and 22727500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22727527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1976 + ... + 7025.

It is an arithmetic number, because the mean of its divisors is an integer number (2372027).

Almost surely, 2^22727525 is an apocalyptic number.

22727525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22727525 is a deficient number, since it is larger than the sum of its proper divisors (5736799).

22727525 is a wasteful number, since it uses less digits than its factorization.

22727525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112 (or 9107 counting only the distinct ones).

The product of its digits is 19600, while the sum is 32.

The square root of 22727525 is about 4767.3394047414. The cubic root of 22727525 is about 283.2592155227.

The spelling of 22727525 in words is "twenty-two million, seven hundred twenty-seven thousand, five hundred twenty-five".