216003054 has 16 divisors (see below), whose sum is σ = 457418448. Its totient is φ = 67765632.

The previous prime is 216003043. The next prime is 216003121. The reversal of 216003054 is 450300612.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216003054.

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, 1058737 + ... + 1058940.

It is an arithmetic number, because the mean of its divisors is an integer number (28588653).

Almost surely, 2^216003054 is an apocalyptic number.

216003054 is an abundant number, since it is smaller than the sum of its proper divisors (241415394).

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

216003054 is a wasteful number, since it uses less digits than its factorization.

216003054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117699.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 216003054 is about 14697.0423555217. The cubic root of 216003054 is about 600.0028277645.

Adding to 216003054 its reverse (450300612), we get a palindrome (666303666).

The spelling of 216003054 in words is "two hundred sixteen million, three thousand, fifty-four".