53660317 has 2 divisors, whose sum is σ = 53660318. Its totient is φ = 53660316.

The previous prime is 53660293. The next prime is 53660333. The reversal of 53660317 is 71306635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46321636 + 7338681 = 6806^2 + 2709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53660317 is a prime.

It is a super-3 number, since 3×53660317³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53660377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26830158 + 26830159.

It is an arithmetic number, because the mean of its divisors is an integer number (26830159).

Almost surely, 2^53660317 is an apocalyptic number.

It is an amenable number.

53660317 is a deficient number, since it is larger than the sum of its proper divisors (1).

53660317 is an equidigital number, since it uses as much as digits as its factorization.

53660317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 53660317 is about 7325.3202660362. The cubic root of 53660317 is about 377.1821033197.

The spelling of 53660317 in words is "fifty-three million, six hundred sixty thousand, three hundred seventeen".