216615050 has 24 divisors (see below), whose sum is σ = 405991872. Its totient is φ = 85982000.

The previous prime is 216615041. The next prime is 216615059. The reversal of 216615050 is 50516612.

It is an interprime number because it is at equal distance from previous prime (216615041) and next prime (216615059).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (216615059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9986 + ... + 23085.

It is an arithmetic number, because the mean of its divisors is an integer number (16916328).

Almost surely, 2^216615050 is an apocalyptic number.

216615050 is a deficient number, since it is larger than the sum of its proper divisors (189376822).

216615050 is a wasteful number, since it uses less digits than its factorization.

216615050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33214 (or 33209 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 216615050 is about 14717.8480084556. The cubic root of 216615050 is about 600.5689510614.

The spelling of 216615050 in words is "two hundred sixteen million, six hundred fifteen thousand, fifty".