216415054 has 8 divisors (see below), whose sum is σ = 341708040. Its totient is φ = 102512376.

The previous prime is 216415039. The next prime is 216415057. The reversal of 216415054 is 450514612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216415057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2847529 + ... + 2847604.

It is an arithmetic number, because the mean of its divisors is an integer number (42713505).

Almost surely, 2^216415054 is an apocalyptic number.

216415054 is a deficient number, since it is larger than the sum of its proper divisors (125292986).

216415054 is a wasteful number, since it uses less digits than its factorization.

216415054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5695154.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 216415054 is about 14711.0521037756. The cubic root of 216415054 is about 600.3840633657.

Adding to 216415054 its reverse (450514612), we get a palindrome (666929666).

The spelling of 216415054 in words is "two hundred sixteen million, four hundred fifteen thousand, fifty-four".