53859217 has 2 divisors, whose sum is σ = 53859218. Its totient is φ = 53859216.

The previous prime is 53859191. The next prime is 53859259. The reversal of 53859217 is 71295835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 10246401 = 6604^2 + 3201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53859217 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53859217.

It is not a weakly prime, because it can be changed into another prime (53859287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26929608 + 26929609.

It is an arithmetic number, because the mean of its divisors is an integer number (26929609).

Almost surely, 2^53859217 is an apocalyptic number.

It is an amenable number.

53859217 is a deficient number, since it is larger than the sum of its proper divisors (1).

53859217 is an equidigital number, since it uses as much as digits as its factorization.

53859217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 53859217 is about 7338.8839069711. The cubic root of 53859217 is about 377.6475560174.

The spelling of 53859217 in words is "fifty-three million, eight hundred fifty-nine thousand, two hundred seventeen".