503045057 has 4 divisors (see below), whose sum is σ = 503131476. Its totient is φ = 502958640.

The previous prime is 503045047. The next prime is 503045071. The reversal of 503045057 is 750540305.

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 373107856 + 129937201 = 19316^2 + 11399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503045057 is a prime.

It is a super-3 number, since 3×503045057³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503045047) 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, 33794 + ... + 46347.

It is an arithmetic number, because the mean of its divisors is an integer number (125782869).

Almost surely, 2^503045057 is an apocalyptic number.

It is an amenable number.

503045057 is a deficient number, since it is larger than the sum of its proper divisors (86419).

503045057 is an equidigital number, since it uses as much as digits as its factorization.

503045057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86418.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 503045057 is about 22428.6659656788. The cubic root of 503045057 is about 795.3085083515.

The spelling of 503045057 in words is "five hundred three million, forty-five thousand, fifty-seven".