252220 has 12 divisors (see below), whose sum is σ = 529704. Its totient is φ = 100880.

The previous prime is 252209. The next prime is 252223. The reversal of 252220 is 22252.

252220 = T₁₉₉ + T₂₀₀ + ... + T₂₁₀.

It is a super-2 number, since 2×252220² = 127229856800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252223) by changing a digit.

252220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6286 + ... + 6325.

It is an arithmetic number, because the mean of its divisors is an integer number (44142).

2²⁵²²²⁰ is an apocalyptic number.

252220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252220 is an abundant number, since it is smaller than the sum of its proper divisors (277484).

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

252220 is a wasteful number, since it uses less digits than its factorization.

252220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620 (or 12618 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 252220 is about 502.2150933614. The cubic root of 252220 is about 63.1819715708.

Adding to 252220 its reverse (22252), we get a palindrome (274472).

The spelling of 252220 in words is "two hundred fifty-two thousand, two hundred twenty".