252218783 has 4 divisors (see below), whose sum is σ = 267055200. Its totient is φ = 237382368.

The previous prime is 252218777. The next prime is 252218803. The reversal of 252218783 is 387812252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252218783 - 2⁶ = 252218719 is a prime.

It is a super-2 number, since 2×252218783² = 127228628996002178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252218983) 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, 7418183 + ... + 7418216.

It is an arithmetic number, because the mean of its divisors is an integer number (66763800).

Almost surely, 2^252218783 is an apocalyptic number.

252218783 is a deficient number, since it is larger than the sum of its proper divisors (14836417).

252218783 is a wasteful number, since it uses less digits than its factorization.

252218783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14836416.

The product of its digits is 53760, while the sum is 38.

The square root of 252218783 is about 15881.3973881394. The cubic root of 252218783 is about 631.8186994978.

The spelling of 252218783 in words is "two hundred fifty-two million, two hundred eighteen thousand, seven hundred eighty-three".