22542325 has 24 divisors (see below), whose sum is σ = 30380000. Its totient is φ = 16493760.

The previous prime is 22542313. The next prime is 22542329. The reversal of 22542325 is 52324522.

It is a happy number.

It is not a de Polignac number, because 22542325 - 2¹⁹ = 22018037 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 22542325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44926 + ... + 45424.

Almost surely, 2^22542325 is an apocalyptic number.

22542325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22542325 is a deficient number, since it is larger than the sum of its proper divisors (7837675).

22542325 is a wasteful number, since it uses less digits than its factorization.

22542325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 656 counting only the distinct ones).

The product of its digits is 4800, while the sum is 25.

The square root of 22542325 is about 4747.8758408366. The cubic root of 22542325 is about 282.4877171155.

Adding to 22542325 its reverse (52324522), we get a palindrome (74866847).

The spelling of 22542325 in words is "twenty-two million, five hundred forty-two thousand, three hundred twenty-five".