216952455 has 16 divisors (see below), whose sum is σ = 351308160. Its totient is φ = 114313248.

The previous prime is 216952441. The next prime is 216952457. The reversal of 216952455 is 554259612.

It is not a de Polignac number, because 216952455 - 2⁶ = 216952391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216952457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85885 + ... + 88374.

It is an arithmetic number, because the mean of its divisors is an integer number (21956760).

Almost surely, 2^216952455 is an apocalyptic number.

216952455 is a deficient number, since it is larger than the sum of its proper divisors (134355705).

216952455 is a wasteful number, since it uses less digits than its factorization.

216952455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174350.

The product of its digits is 108000, while the sum is 39.

The square root of 216952455 is about 14729.3059917974. The cubic root of 216952455 is about 600.8806096898.

The spelling of 216952455 in words is "two hundred sixteen million, nine hundred fifty-two thousand, four hundred fifty-five".