216201054 has 16 divisors (see below), whose sum is σ = 432546192. Its totient is φ = 72043008.

The previous prime is 216201023. The next prime is 216201059. The reversal of 216201054 is 450102612.

It is a self number, because there is not a number n which added to its sum of digits gives 216201054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216201059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32692 + ... + 38744.

It is an arithmetic number, because the mean of its divisors is an integer number (27034137).

Almost surely, 2^216201054 is an apocalyptic number.

216201054 is an abundant number, since it is smaller than the sum of its proper divisors (216345138).

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

216201054 is a wasteful number, since it uses less digits than its factorization.

216201054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12011.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 216201054 is about 14703.7768617454. The cubic root of 216201054 is about 600.1861033810.

Adding to 216201054 its reverse (450102612), we get a palindrome (666303666).

The spelling of 216201054 in words is "two hundred sixteen million, two hundred one thousand, fifty-four".