215284852 has 6 divisors (see below), whose sum is σ = 376748498. Its totient is φ = 107642424.

The previous prime is 215284847. The next prime is 215284897. The reversal of 215284852 is 258482512.

It can be written as a sum of positive squares in only one way, i.e., 211877136 + 3407716 = 14556^2 + 1846^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26910603 + ... + 26910610.

Almost surely, 2^215284852 is an apocalyptic number.

It is an amenable number.

215284852 is a deficient number, since it is larger than the sum of its proper divisors (161463646).

215284852 is a wasteful number, since it uses less digits than its factorization.

215284852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53821217 (or 53821215 counting only the distinct ones).

The product of its digits is 51200, while the sum is 37.

The square root of 215284852 is about 14672.5884560292. The cubic root of 215284852 is about 599.3370937879.

The spelling of 215284852 in words is "two hundred fifteen million, two hundred eighty-four thousand, eight hundred fifty-two".