385825355317 has 2 divisors, whose sum is σ = 385825355318. Its totient is φ = 385825355316.

The previous prime is 385825355309. The next prime is 385825355339. The reversal of 385825355317 is 713553528583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382104477316 + 3720878001 = 618146^2 + 60999^2 .

It is a cyclic number.

It is not a de Polignac number, because 385825355317 - 2³ = 385825355309 is a prime.

It is a super-2 number, since 2×385825355317² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385825355117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192912677658 + 192912677659.

It is an arithmetic number, because the mean of its divisors is an integer number (192912677659).

Almost surely, 2^385825355317 is an apocalyptic number.

It is an amenable number.

385825355317 is a deficient number, since it is larger than the sum of its proper divisors (1).

385825355317 is an equidigital number, since it uses as much as digits as its factorization.

385825355317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120000, while the sum is 55.

The spelling of 385825355317 in words is "three hundred eighty-five billion, eight hundred twenty-five million, three hundred fifty-five thousand, three hundred seventeen".