22036525 has 18 divisors (see below), whose sum is σ = 31788330. Its totient is φ = 15109920.

The previous prime is 22036519. The next prime is 22036529. The reversal of 22036525 is 52563022.

It can be written as a sum of positive squares in 3 ways, for example, as 3261636 + 18774889 = 1806^2 + 4333^2 .

It is not a de Polignac number, because 22036525 - 2⁵ = 22036493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 22036525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22036529) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7770 + ... + 10219.

Almost surely, 2^22036525 is an apocalyptic number.

22036525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22036525 is a deficient number, since it is larger than the sum of its proper divisors (9751805).

22036525 is a wasteful number, since it uses less digits than its factorization.

22036525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18013 (or 18001 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 22036525 is about 4694.3077231899. The cubic root of 22036525 is about 280.3589147328.

Adding to 22036525 its reverse (52563022), we get a palindrome (74599547).

The spelling of 22036525 in words is "twenty-two million, thirty-six thousand, five hundred twenty-five".