22530425 has 12 divisors (see below), whose sum is σ = 28356816. Its totient is φ = 17754000.

The previous prime is 22530379. The next prime is 22530449. The reversal of 22530425 is 52403522.

It is not a de Polignac number, because 22530425 - 2¹⁶ = 22464889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22530425.

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, 5051 + ... + 8400.

It is an arithmetic number, because the mean of its divisors is an integer number (2363068).

Almost surely, 2^22530425 is an apocalyptic number.

22530425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22530425 is a deficient number, since it is larger than the sum of its proper divisors (5826391).

22530425 is a wasteful number, since it uses less digits than its factorization.

22530425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13528 (or 13523 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22530425 is about 4746.6224834086. The cubic root of 22530425 is about 282.4380003341.

Adding to 22530425 its reverse (52403522), we get a palindrome (74933947).

The spelling of 22530425 in words is "twenty-two million, five hundred thirty thousand, four hundred twenty-five".