385520035523 has 12 divisors (see below), whose sum is σ = 448557104160. Its totient is φ = 330375728592.

The previous prime is 385520035517. The next prime is 385520035529. The reversal of 385520035523 is 325530025583.

It is an interprime number because it is at equal distance from previous prime (385520035517) and next prime (385520035529).

It is not a de Polignac number, because 385520035523 - 2²⁰ = 385518986947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385520035529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 599243 + ... + 1063076.

It is an arithmetic number, because the mean of its divisors is an integer number (37379758680).

Almost surely, 2^385520035523 is an apocalyptic number.

385520035523 is a deficient number, since it is larger than the sum of its proper divisors (63037068637).

385520035523 is a wasteful number, since it uses less digits than its factorization.

385520035523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667066 (or 1667059 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 385520035523 in words is "three hundred eighty-five billion, five hundred twenty million, thirty-five thousand, five hundred twenty-three".