22625220 has 48 divisors (see below), whose sum is σ = 65540160. Its totient is φ = 5824896.

The previous prime is 22625209. The next prime is 22625221. The reversal of 22625220 is 2252622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22625221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4762 + ... + 8241.

It is an arithmetic number, because the mean of its divisors is an integer number (1365420).

Almost surely, 2^22625220 is an apocalyptic number.

22625220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22625220 is an abundant number, since it is smaller than the sum of its proper divisors (42914940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22625220 is a wasteful number, since it uses less digits than its factorization.

22625220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13044 (or 13042 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22625220 is about 4756.5975234405. The cubic root of 22625220 is about 282.8335580201.

Adding to 22625220 its reverse (2252622), we get a palindrome (24877842).

The spelling of 22625220 in words is "twenty-two million, six hundred twenty-five thousand, two hundred twenty".