505580325803 has 4 divisors (see below), whose sum is σ = 577806086640. Its totient is φ = 433354564968.

The previous prime is 505580325799. The next prime is 505580325853. The reversal of 505580325803 is 308523085505.

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 505580325803 - 2² = 505580325799 is a prime.

It is a super-2 number, since 2×505580325803² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505580325853) 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, 36112880408 + ... + 36112880421.

It is an arithmetic number, because the mean of its divisors is an integer number (144451521660).

Almost surely, 2^505580325803 is an apocalyptic number.

505580325803 is a deficient number, since it is larger than the sum of its proper divisors (72225760837).

505580325803 is an equidigital number, since it uses as much as digits as its factorization.

505580325803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72225760836.

The product of its (nonzero) digits is 720000, while the sum is 44.

The spelling of 505580325803 in words is "five hundred five billion, five hundred eighty million, three hundred twenty-five thousand, eight hundred three".