216553315 has 16 divisors (see below), whose sum is σ = 283779936. Its totient is φ = 157331200.

The previous prime is 216553291. The next prime is 216553319. The reversal of 216553315 is 513355612.

It is not a de Polignac number, because 216553315 - 2¹³ = 216545123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216553319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87495 + ... + 89935.

It is an arithmetic number, because the mean of its divisors is an integer number (17736246).

Almost surely, 2^216553315 is an apocalyptic number.

216553315 is a deficient number, since it is larger than the sum of its proper divisors (67226621).

216553315 is a wasteful number, since it uses less digits than its factorization.

216553315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070.

The product of its digits is 13500, while the sum is 31.

The square root of 216553315 is about 14715.7505754888. The cubic root of 216553315 is about 600.5118918574.

The spelling of 216553315 in words is "two hundred sixteen million, five hundred fifty-three thousand, three hundred fifteen".