215135050 has 96 divisors (see below), whose sum is σ = 454189680. Its totient is φ = 75264000.

The previous prime is 215135047. The next prime is 215135069. The reversal of 215135050 is 50531512.

215135050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 24 ways, for example, as 26429881 + 188705169 = 5141^2 + 13737^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1903794 + ... + 1903906.

Almost surely, 2^215135050 is an apocalyptic number.

215135050 is an abundant number, since it is smaller than the sum of its proper divisors (239054630).

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

215135050 is a wasteful number, since it uses less digits than its factorization.

215135050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 215135050 is about 14667.4827424477. The cubic root of 215135050 is about 599.1980489722.

Adding to 215135050 its reverse (50531512), we get a palindrome (265666562).

The spelling of 215135050 in words is "two hundred fifteen million, one hundred thirty-five thousand, fifty".