503011413 has 6 divisors (see below), whose sum is σ = 726572054. Its totient is φ = 335340936.

The previous prime is 503011373. The next prime is 503011441. The reversal of 503011413 is 314110305.

It can be written as a sum of positive squares in only one way, i.e., 348307569 + 154703844 = 18663^2 + 12438^2 .

It is not a de Polignac number, because 503011413 - 2⁶ = 503011349 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 (503011013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27945070 + ... + 27945087.

Almost surely, 2^503011413 is an apocalyptic number.

It is an amenable number.

503011413 is a deficient number, since it is larger than the sum of its proper divisors (223560641).

503011413 is a wasteful number, since it uses less digits than its factorization.

503011413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55890163 (or 55890160 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 503011413 is about 22427.9159308216. The cubic root of 503011413 is about 795.2907776959.

Adding to 503011413 its reverse (314110305), we get a palindrome (817121718).

The spelling of 503011413 in words is "five hundred three million, eleven thousand, four hundred thirteen".