22556425 has 12 divisors (see below), whose sum is σ = 28029456. Its totient is φ = 18006800.

The previous prime is 22556419. The next prime is 22556441. The reversal of 22556425 is 52465522.

It is a happy number.

It is not a de Polignac number, because 22556425 - 2¹¹ = 22554377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20130 + ... + 21220.

It is an arithmetic number, because the mean of its divisors is an integer number (2335788).

Almost surely, 2^22556425 is an apocalyptic number.

22556425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22556425 is a deficient number, since it is larger than the sum of its proper divisors (5473031).

22556425 is a wasteful number, since it uses less digits than its factorization.

22556425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928 (or 1923 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 22556425 is about 4749.3604832651. The cubic root of 22556425 is about 282.5466025919.

The spelling of 22556425 in words is "twenty-two million, five hundred fifty-six thousand, four hundred twenty-five".