22563525 has 48 divisors (see below), whose sum is σ = 39354624. Its totient is φ = 11393280.

The previous prime is 22563521. The next prime is 22563533. The reversal of 22563525 is 52536522.

It is not a de Polignac number, because 22563525 - 2² = 22563521 is a prime.

It is a super-2 number, since 2×22563525² = 1018225320851250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22563492 and 22563501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22563521) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 130339 + ... + 130511.

It is an arithmetic number, because the mean of its divisors is an integer number (819888).

Almost surely, 2^22563525 is an apocalyptic number.

22563525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22563525 is a deficient number, since it is larger than the sum of its proper divisors (16791099).

22563525 is a wasteful number, since it uses less digits than its factorization.

22563525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 265 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 22563525 is about 4750.1078935115. The cubic root of 22563525 is about 282.5762448547.

It can be divided in two parts, 2256 and 3525, that multiplied together give a square (7952400 = 2820²).

The spelling of 22563525 in words is "twenty-two million, five hundred sixty-three thousand, five hundred twenty-five".