385355553583 has 16 divisors (see below), whose sum is σ = 517400464896. Its totient is φ = 277178819040.

The previous prime is 385355553551. The next prime is 385355553589.

385355553583 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 385355553583 - 2⁵ = 385355553551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385355553589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192484291 + ... + 192486292.

It is an arithmetic number, because the mean of its divisors is an integer number (32337529056).

Almost surely, 2^385355553583 is an apocalyptic number.

385355553583 is a deficient number, since it is larger than the sum of its proper divisors (132044911313).

385355553583 is a wasteful number, since it uses less digits than its factorization.

385355553583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384970614.

The product of its digits is 81000000, while the sum is 58.

The spelling of 385355553583 in words is "three hundred eighty-five billion, three hundred fifty-five million, five hundred fifty-three thousand, five hundred eighty-three".