216028501 has 8 divisors (see below), whose sum is σ = 232775424. Its totient is φ = 199300080.

The previous prime is 216028487. The next prime is 216028573. The reversal of 216028501 is 105820612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216028501 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 (216028601) 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, 28416 + ... + 35206.

It is an arithmetic number, because the mean of its divisors is an integer number (29096928).

Almost surely, 2^216028501 is an apocalyptic number.

It is an amenable number.

216028501 is a deficient number, since it is larger than the sum of its proper divisors (16746923).

216028501 is a wasteful number, since it uses less digits than its factorization.

216028501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9251.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 216028501 is about 14697.9080484265. The cubic root of 216028501 is about 600.0263886542.

It can be divided in two parts, 21602 and 8501, that added together give a palindrome (30103).

The spelling of 216028501 in words is "two hundred sixteen million, twenty-eight thousand, five hundred one".