216020250 has 64 divisors (see below), whose sum is σ = 599114880. Its totient is φ = 57603600.

The previous prime is 216020239. The next prime is 216020251. The reversal of 216020250 is 52020612.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (216020251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9252 + ... + 22751.

It is an arithmetic number, because the mean of its divisors is an integer number (9361170).

Almost surely, 2^216020250 is an apocalyptic number.

216020250 is an abundant number, since it is smaller than the sum of its proper divisors (383094630).

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

216020250 is a wasteful number, since it uses less digits than its factorization.

216020250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32029 (or 32013 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 216020250 is about 14697.6273595434. The cubic root of 216020250 is about 600.0187494141.

Adding to 216020250 its reverse (52020612), we get a palindrome (268040862).

The spelling of 216020250 in words is "two hundred sixteen million, twenty thousand, two hundred fifty".