213316650 has 36 divisors (see below), whose sum is σ = 573111942. Its totient is φ = 56884320.

The previous prime is 213316637. The next prime is 213316687. The reversal of 213316650 is 56613312.

213316650 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 1 + 6 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 193682889 + 19633761 = 13917^2 + 4431^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 236569 + ... + 237468.

Almost surely, 2^213316650 is an apocalyptic number.

213316650 is an abundant number, since it is smaller than the sum of its proper divisors (359795292).

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

213316650 is a wasteful number, since it uses less digits than its factorization.

213316650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474055 (or 474047 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 213316650 is about 14605.3637407632. The cubic root of 213316650 is about 597.5050564747.

Adding to 213316650 its reverse (56613312), we get a palindrome (269929962).

The spelling of 213316650 in words is "two hundred thirteen million, three hundred sixteen thousand, six hundred fifty".