52782243 has 16 divisors (see below), whose sum is σ = 72883200. Its totient is φ = 33942240.

The previous prime is 52782227. The next prime is 52782281. The reversal of 52782243 is 34228725.

52782243 = 892² + 893² + ... + 953².

It is not a de Polignac number, because 52782243 - 2⁴ = 52782227 is a prime.

It is a super-2 number, since 2×52782243² = 5571930352222098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52782043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35448 + ... + 36906.

It is an arithmetic number, because the mean of its divisors is an integer number (4555200).

Almost surely, 2^52782243 is an apocalyptic number.

52782243 is a deficient number, since it is larger than the sum of its proper divisors (20100957).

52782243 is a wasteful number, since it uses less digits than its factorization.

52782243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882.

The product of its digits is 26880, while the sum is 33.

The square root of 52782243 is about 7265.1388837379. The cubic root of 52782243 is about 375.1134305748.

The spelling of 52782243 in words is "fifty-two million, seven hundred eighty-two thousand, two hundred forty-three".