385555086503 has 4 divisors (see below), whose sum is σ = 385563875520. Its totient is φ = 385546297488.

The previous prime is 385555086493. The next prime is 385555086547. The reversal of 385555086503 is 305680555583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385555086503 - 2¹⁰ = 385555085479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385555086583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4328375 + ... + 4416552.

It is an arithmetic number, because the mean of its divisors is an integer number (96390968880).

Almost surely, 2^385555086503 is an apocalyptic number.

385555086503 is a deficient number, since it is larger than the sum of its proper divisors (8789017).

385555086503 is an equidigital number, since it uses as much as digits as its factorization.

385555086503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8789016.

The product of its (nonzero) digits is 10800000, while the sum is 53.

The spelling of 385555086503 in words is "three hundred eighty-five billion, five hundred fifty-five million, eighty-six thousand, five hundred three".