22150566 has 12 divisors (see below), whose sum is σ = 47992932. Its totient is φ = 7383516.

The previous prime is 22150553. The next prime is 22150567. The reversal of 22150566 is 66505122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22150567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 615276 + ... + 615311.

It is an arithmetic number, because the mean of its divisors is an integer number (3999411).

Almost surely, 2^22150566 is an apocalyptic number.

22150566 is an abundant number, since it is smaller than the sum of its proper divisors (25842366).

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

22150566 is a wasteful number, since it uses less digits than its factorization.

22150566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230595 (or 1230592 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22150566 is about 4706.4387810743. The cubic root of 22150566 is about 280.8417103891.

Adding to 22150566 its reverse (66505122), we get a palindrome (88655688).

The spelling of 22150566 in words is "twenty-two million, one hundred fifty thousand, five hundred sixty-six".