7216559 has 8 divisors (see below), whose sum is σ = 8274048. Its totient is φ = 6165720.

The previous prime is 7216543. The next prime is 7216567. The reversal of 7216559 is 9556127.

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

It is a cyclic number.

It is not a de Polignac number, because 7216559 - 2⁴ = 7216543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7216589) 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, 944 + ... + 3914.

It is an arithmetic number, because the mean of its divisors is an integer number (1034256).

Almost surely, 2^7216559 is an apocalyptic number.

7216559 is a deficient number, since it is larger than the sum of its proper divisors (1057489).

7216559 is a wasteful number, since it uses less digits than its factorization.

7216559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325.

The product of its digits is 18900, while the sum is 35.

The square root of 7216559 is about 2686.3653884012. The cubic root of 7216559 is about 193.2457963469.

The spelling of 7216559 in words is "seven million, two hundred sixteen thousand, five hundred fifty-nine".