52782216 has 32 divisors (see below), whose sum is σ = 133002240. Its totient is φ = 17454528.

The previous prime is 52782173. The next prime is 52782227. The reversal of 52782216 is 61228725.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5611 + ... + 11706.

It is an arithmetic number, because the mean of its divisors is an integer number (4156320).

Almost surely, 2^52782216 is an apocalyptic number.

It is an amenable number.

52782216 is an abundant number, since it is smaller than the sum of its proper divisors (80220024).

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

52782216 is a wasteful number, since it uses less digits than its factorization.

52782216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17453 (or 17449 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 52782216 is about 7265.1370255488. The cubic root of 52782216 is about 375.1133666135.

The spelling of 52782216 in words is "fifty-two million, seven hundred eighty-two thousand, two hundred sixteen".