22552166 has 64 divisors (see below), whose sum is σ = 45505152. Its totient is φ = 8128512.

The previous prime is 22552163. The next prime is 22552171. The reversal of 22552166 is 66125522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22552163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114380 + ... + 114576.

It is an arithmetic number, because the mean of its divisors is an integer number (711018).

Almost surely, 2^22552166 is an apocalyptic number.

22552166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22552166 is an abundant number, since it is smaller than the sum of its proper divisors (22952986).

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

22552166 is a wasteful number, since it uses less digits than its factorization.

22552166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its digits is 7200, while the sum is 29.

The square root of 22552166 is about 4748.9120859414. The cubic root of 22552166 is about 282.5288184243.

Adding to 22552166 its reverse (66125522), we get a palindrome (88677688).

The spelling of 22552166 in words is "twenty-two million, five hundred fifty-two thousand, one hundred sixty-six".