215583248 has 20 divisors (see below), whose sum is σ = 427881468. Its totient is φ = 105162240.

The previous prime is 215583241. The next prime is 215583257. The reversal of 215583248 is 842385512.

It can be written as a sum of positive squares in 2 ways, for example, as 90859024 + 124724224 = 9532^2 + 11168^2 .

It is a super-2 number, since 2×215583248² = 92952273636459008, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (215583241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163661 + ... + 164972.

Almost surely, 2^215583248 is an apocalyptic number.

It is an amenable number.

215583248 is a deficient number, since it is larger than the sum of its proper divisors (212298220).

215583248 is a wasteful number, since it uses less digits than its factorization.

215583248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328682 (or 328676 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 215583248 is about 14682.7534202547. The cubic root of 215583248 is about 599.6138700780.

The spelling of 215583248 in words is "two hundred fifteen million, five hundred eighty-three thousand, two hundred forty-eight".