252218802 has 16 divisors (see below), whose sum is σ = 550295712. Its totient is φ = 76429920.

The previous prime is 252218777. The next prime is 252218803. The reversal of 252218802 is 208812252.

It is a super-2 number, since 2×252218802² = 127228648164630408, 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 252218802.

It is not an unprimeable number, because it can be changed into a prime (252218803) 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 7 ways as a sum of consecutive naturals, for example, 1910683 + ... + 1910814.

It is an arithmetic number, because the mean of its divisors is an integer number (34393482).

Almost surely, 2^252218802 is an apocalyptic number.

252218802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

252218802 is an abundant number, since it is smaller than the sum of its proper divisors (298076910).

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

252218802 is a wasteful number, since it uses less digits than its factorization.

252218802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821513.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 252218802 is about 15881.3979863235. The cubic root of 252218802 is about 631.8187153631.

The spelling of 252218802 in words is "two hundred fifty-two million, two hundred eighteen thousand, eight hundred two".