22775522 has 32 divisors (see below), whose sum is σ = 43213824. Its totient is φ = 8744400.

The previous prime is 22775521. The next prime is 22775539. The reversal of 22775522 is 22557722.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22775521) 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, 9893 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (1350432).

Almost surely, 2^22775522 is an apocalyptic number.

22775522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22775522 is a deficient number, since it is larger than the sum of its proper divisors (20438302).

22775522 is a wasteful number, since it uses less digits than its factorization.

22775522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174.

The product of its digits is 19600, while the sum is 32.

The square root of 22775522 is about 4772.3706897097. The cubic root of 22775522 is about 283.4584751310.

The spelling of 22775522 in words is "twenty-two million, seven hundred seventy-five thousand, five hundred twenty-two".