505705003 has 4 divisors (see below), whose sum is σ = 506676168. Its totient is φ = 504733840.

The previous prime is 505704977. The next prime is 505705019. The reversal of 505705003 is 300507505.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505705003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505705033) 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, 484801 + ... + 485842.

It is an arithmetic number, because the mean of its divisors is an integer number (126669042).

Almost surely, 2^505705003 is an apocalyptic number.

505705003 is a deficient number, since it is larger than the sum of its proper divisors (971165).

505705003 is an equidigital number, since it uses as much as digits as its factorization.

505705003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971164.

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 505705003 is about 22487.8856943022. The cubic root of 505705003 is about 796.7078263039.

The spelling of 505705003 in words is "five hundred five million, seven hundred five thousand, three".