216007250 has 16 divisors (see below), whose sum is σ = 404366040. Its totient is φ = 86402800.

The previous prime is 216007223. The next prime is 216007261. The reversal of 216007250 is 52700612.

It can be written as a sum of positive squares in 4 ways, for example, as 121198081 + 94809169 = 11009^2 + 9737^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431765 + ... + 432264.

Almost surely, 2^216007250 is an apocalyptic number.

216007250 is a deficient number, since it is larger than the sum of its proper divisors (188358790).

216007250 is an equidigital number, since it uses as much as digits as its factorization.

216007250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864046 (or 864036 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 216007250 is about 14697.1851046382. The cubic root of 216007250 is about 600.0067128879.

Adding to 216007250 its reverse (52700612), we get a palindrome (268707862).

The spelling of 216007250 in words is "two hundred sixteen million, seven thousand, two hundred fifty".