316825517 has 2 divisors, whose sum is σ = 316825518. Its totient is φ = 316825516.

The previous prime is 316825469. The next prime is 316825577. The reversal of 316825517 is 715528613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316448521 + 376996 = 17789^2 + 614^2 .

It is an emirp because it is prime and its reverse (715528613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316825517 - 2¹⁰ = 316824493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316825577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158412758 + 158412759.

It is an arithmetic number, because the mean of its divisors is an integer number (158412759).

Almost surely, 2^316825517 is an apocalyptic number.

It is an amenable number.

316825517 is a deficient number, since it is larger than the sum of its proper divisors (1).

316825517 is an equidigital number, since it uses as much as digits as its factorization.

316825517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 316825517 is about 17799.5931695081. The cubic root of 316825517 is about 681.7210706820.

The spelling of 316825517 in words is "three hundred sixteen million, eight hundred twenty-five thousand, five hundred seventeen".