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22052 = 2237149

22052 has 12 divisors (see below), whose sum is σ = 39900. Its totient is φ = 10656.

The previous prime is 22051. The next prime is 22063. The reversal of 22052 is 25022.

22052 = T103 + T104 + ... + T106.

It can be written as a sum of positive squares in 2 ways, for example, as 11236 + 10816 = 106^2 + 104^2 .

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (22051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 222.

It is an arithmetic number, because the mean of its divisors is an integer number (3325).

222052 is an apocalyptic number.

It is a pronic number, being equal to 148×149.

It is an amenable number.

22052 is a deficient number, since it is larger than the sum of its proper divisors (17848).

22052 is a wasteful number, since it uses less digits than its factorization.

22052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 22052 is about 148.4991582468. The cubic root of 22052 is about 28.0424526091.

Adding to 22052 its reverse (25022), we get a palindrome (47074).

It can be divided in two parts, 220 and 52, that added together give a palindrome (272).

The spelling of 22052 in words is "twenty-two thousand, fifty-two".

Divisors: 1 2 4 37 74 148 149 298 596 5513 11026 22052