53700217 has 2 divisors, whose sum is σ = 53700218. Its totient is φ = 53700216.

The previous prime is 53700181. The next prime is 53700221. The reversal of 53700217 is 71200735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48776256 + 4923961 = 6984^2 + 2219^2 .

It is a cyclic number.

It is not a de Polignac number, because 53700217 - 2¹⁹ = 53175929 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 53700191 and 53700200.

It is not a weakly prime, because it can be changed into another prime (53700247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26850108 + 26850109.

It is an arithmetic number, because the mean of its divisors is an integer number (26850109).

Almost surely, 2^53700217 is an apocalyptic number.

It is an amenable number.

53700217 is a deficient number, since it is larger than the sum of its proper divisors (1).

53700217 is an equidigital number, since it uses as much as digits as its factorization.

53700217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 53700217 is about 7328.0431903749. The cubic root of 53700217 is about 377.2755667839.

The spelling of 53700217 in words is "fifty-three million, seven hundred thousand, two hundred seventeen".