22003525 has 24 divisors (see below), whose sum is σ = 30158784. Its totient is φ = 15840000.

The previous prime is 22003523. The next prime is 22003529. The reversal of 22003525 is 52530022.

It is not a de Polignac number, because 22003525 - 2¹ = 22003523 is a prime.

It is a super-2 number, since 2×22003525² = 968310224851250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8650 + ... + 10900.

It is an arithmetic number, because the mean of its divisors is an integer number (1256616).

Almost surely, 2^22003525 is an apocalyptic number.

22003525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22003525 is a deficient number, since it is larger than the sum of its proper divisors (8155259).

22003525 is a wasteful number, since it uses less digits than its factorization.

22003525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 22003525 is about 4690.7915110352. The cubic root of 22003525 is about 280.2188977037.

Adding to 22003525 its reverse (52530022), we get a palindrome (74533547).

The spelling of 22003525 in words is "twenty-two million, three thousand, five hundred twenty-five".