52212286 has 16 divisors (see below), whose sum is σ = 91025280. Its totient is φ = 21997080.

The previous prime is 52212283. The next prime is 52212299. The reversal of 52212286 is 68221225.

It is a super-2 number, since 2×52212286² = 5452245618691592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52212283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30780 + ... + 32431.

It is an arithmetic number, because the mean of its divisors is an integer number (5689080).

Almost surely, 2^52212286 is an apocalyptic number.

52212286 is a deficient number, since it is larger than the sum of its proper divisors (38812994).

52212286 is a wasteful number, since it uses less digits than its factorization.

52212286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63279.

The product of its digits is 3840, while the sum is 28.

The square root of 52212286 is about 7225.8069445564. The cubic root of 52212286 is about 373.7583490490.

The spelling of 52212286 in words is "fifty-two million, two hundred twelve thousand, two hundred eighty-six".