216254455 has 16 divisors (see below), whose sum is σ = 270902304. Its totient is φ = 165559680.

The previous prime is 216254453. The next prime is 216254483. The reversal of 216254455 is 554452612.

It is not a de Polignac number, because 216254455 - 2¹ = 216254453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216254455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216254453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704 + ... + 20866.

It is an arithmetic number, because the mean of its divisors is an integer number (16931394).

Almost surely, 2^216254455 is an apocalyptic number.

216254455 is a deficient number, since it is larger than the sum of its proper divisors (54647849).

216254455 is a wasteful number, since it uses less digits than its factorization.

216254455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19266.

The product of its digits is 48000, while the sum is 34.

The square root of 216254455 is about 14705.5926436169. The cubic root of 216254455 is about 600.2355140246.

The spelling of 216254455 in words is "two hundred sixteen million, two hundred fifty-four thousand, four hundred fifty-five".