53689217 has 4 divisors (see below), whose sum is σ = 53716740. Its totient is φ = 53661696.

The previous prime is 53689189. The next prime is 53689219. The reversal of 53689217 is 71298635.

53689217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1401856 + 52287361 = 1184^2 + 7231^2 .

It is a cyclic number.

It is not a de Polignac number, because 53689217 - 2¹⁴ = 53672833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53689219) 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 3 ways as a sum of consecutive naturals, for example, 10592 + ... + 14817.

It is an arithmetic number, because the mean of its divisors is an integer number (13429185).

Almost surely, 2^53689217 is an apocalyptic number.

It is an amenable number.

53689217 is a deficient number, since it is larger than the sum of its proper divisors (27523).

53689217 is a wasteful number, since it uses less digits than its factorization.

53689217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27522.

The product of its digits is 90720, while the sum is 41.

The square root of 53689217 is about 7327.2926105076. The cubic root of 53689217 is about 377.2498045377.

The spelling of 53689217 in words is "fifty-three million, six hundred eighty-nine thousand, two hundred seventeen".