22037525 has 12 divisors (see below), whose sum is σ = 28934532. Its totient is φ = 16592640.

The previous prime is 22037447. The next prime is 22037537. The reversal of 22037525 is 52573022.

22037525 is nontrivially palindromic in base 2 and base 4.

It can be written as a sum of positive squares in 6 ways, for example, as 2172676 + 19864849 = 1474^2 + 4457^2 .

It is not a de Polignac number, because 22037525 - 2⁸ = 22037269 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 = 22037494 and 22037503.

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, 25502 + ... + 26351.

It is an arithmetic number, because the mean of its divisors is an integer number (2411211).

Almost surely, 2^22037525 is an apocalyptic number.

22037525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22037525 is a deficient number, since it is larger than the sum of its proper divisors (6897007).

22037525 is a wasteful number, since it uses less digits than its factorization.

22037525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51880 (or 51875 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 22037525 is about 4694.4142339593. The cubic root of 22037525 is about 280.3631554902.

The spelling of 22037525 in words is "twenty-two million, thirty-seven thousand, five hundred twenty-five".