252218782 has 8 divisors (see below), whose sum is σ = 394777296. Its totient is φ = 120626352.

The previous prime is 252218777. The next prime is 252218803. The reversal of 252218782 is 287812252.

It is a happy number.

252218782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×252218782² = 127228627987127048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741463 + ... + 2741554.

It is an arithmetic number, because the mean of its divisors is an integer number (49347162).

Almost surely, 2^252218782 is an apocalyptic number.

252218782 is a deficient number, since it is larger than the sum of its proper divisors (142558514).

252218782 is a wasteful number, since it uses less digits than its factorization.

252218782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483042.

The product of its digits is 35840, while the sum is 37.

The square root of 252218782 is about 15881.3973566560. The cubic root of 252218782 is about 631.8186986628.

The spelling of 252218782 in words is "two hundred fifty-two million, two hundred eighteen thousand, seven hundred eighty-two".