53284217 has 6 divisors (see below), whose sum is σ = 61983738. Its totient is φ = 45672144.

The previous prime is 53284207. The next prime is 53284237. The reversal of 53284217 is 71248235.

It can be written as a sum of positive squares in only one way, i.e., 30426256 + 22857961 = 5516^2 + 4781^2 .

It is not a de Polignac number, because 53284217 - 2¹⁰ = 53283193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53284207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 543668 + ... + 543765.

It is an arithmetic number, because the mean of its divisors is an integer number (10330623).

Almost surely, 2^53284217 is an apocalyptic number.

It is an amenable number.

53284217 is a deficient number, since it is larger than the sum of its proper divisors (8699521).

53284217 is a wasteful number, since it uses less digits than its factorization.

53284217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087447 (or 1087440 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 53284217 is about 7299.6038933630. The cubic root of 53284217 is about 376.2988254647.

The spelling of 53284217 in words is "fifty-three million, two hundred eighty-four thousand, two hundred seventeen".