216054562 has 16 divisors (see below), whose sum is σ = 339254784. Its totient is φ = 103068000.

The previous prime is 216054557. The next prime is 216054569. The reversal of 216054562 is 265450612.

It is a super-2 number, since 2×216054562² = 93359147522023688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (216054569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20139 + ... + 28942.

It is an arithmetic number, because the mean of its divisors is an integer number (21203424).

Almost surely, 2^216054562 is an apocalyptic number.

216054562 is a deficient number, since it is larger than the sum of its proper divisors (123200222).

216054562 is a wasteful number, since it uses less digits than its factorization.

216054562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49185.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 216054562 is about 14698.7945764270. The cubic root of 216054562 is about 600.0505161171.

The spelling of 216054562 in words is "two hundred sixteen million, fifty-four thousand, five hundred sixty-two".