22525430 has 16 divisors (see below), whose sum is σ = 40604544. Its totient is φ = 8997120.

The previous prime is 22525427. The next prime is 22525439. The reversal of 22525430 is 3452522.

It is a junction number, because it is equal to n+sod(n) for n = 22525396 and 22525405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8774 + ... + 11046.

It is an arithmetic number, because the mean of its divisors is an integer number (2537784).

Almost surely, 2^22525430 is an apocalyptic number.

22525430 is a deficient number, since it is larger than the sum of its proper divisors (18079114).

22525430 is a wasteful number, since it uses less digits than its factorization.

22525430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271.

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

The square root of 22525430 is about 4746.0962906372. The cubic root of 22525430 is about 282.4171266032.

Adding to 22525430 its reverse (3452522), we get a palindrome (25977952).

The spelling of 22525430 in words is "twenty-two million, five hundred twenty-five thousand, four hundred thirty".