215925282 has 12 divisors (see below), whose sum is σ = 467838150. Its totient is φ = 71975088.

The previous prime is 215925263. The next prime is 215925301. The reversal of 215925282 is 282529512.

It is an interprime number because it is at equal distance from previous prime (215925263) and next prime (215925301).

It can be written as a sum of positive squares in only one way, i.e., 180391761 + 35533521 = 13431^2 + 5961^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5997907 + ... + 5997942.

Almost surely, 2^215925282 is an apocalyptic number.

215925282 is an abundant number, since it is smaller than the sum of its proper divisors (251912868).

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

215925282 is a wasteful number, since it uses less digits than its factorization.

215925282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11995857 (or 11995854 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 215925282 is about 14694.3962788541. The cubic root of 215925282 is about 599.9308086879.

The spelling of 215925282 in words is "two hundred fifteen million, nine hundred twenty-five thousand, two hundred eighty-two".