503042305 has 4 divisors (see below), whose sum is σ = 603650772. Its totient is φ = 402433840.

The previous prime is 503042279. The next prime is 503042311. The reversal of 503042305 is 503240305.

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

It can be written as a sum of positive squares in 2 ways, for example, as 206238321 + 296803984 = 14361^2 + 17228^2 .

It is not a de Polignac number, because 503042305 - 2¹³ = 503034113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50304226 + ... + 50304235.

It is an arithmetic number, because the mean of its divisors is an integer number (150912693).

Almost surely, 2^503042305 is an apocalyptic number.

It is an amenable number.

503042305 is a deficient number, since it is larger than the sum of its proper divisors (100608467).

503042305 is a wasteful number, since it uses less digits than its factorization.

503042305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100608466.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 503042305 is about 22428.6046155350. The cubic root of 503042305 is about 795.3070580553.

The spelling of 503042305 in words is "five hundred three million, forty-two thousand, three hundred five".