216255054 has 16 divisors (see below), whose sum is σ = 438435792. Its totient is φ = 71097408.

The previous prime is 216255049. The next prime is 216255073. The reversal of 216255054 is 450552612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246429 + ... + 247304.

It is an arithmetic number, because the mean of its divisors is an integer number (27402237).

Almost surely, 2^216255054 is an apocalyptic number.

216255054 is an abundant number, since it is smaller than the sum of its proper divisors (222180738).

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

216255054 is a wasteful number, since it uses less digits than its factorization.

216255054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493811.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 216255054 is about 14705.6130100040. The cubic root of 216255054 is about 600.2360682186.

The spelling of 216255054 in words is "two hundred sixteen million, two hundred fifty-five thousand, fifty-four".