503000053 has 4 divisors (see below), whose sum is σ = 529473760. Its totient is φ = 476526348.

The previous prime is 503000039. The next prime is 503000059. The reversal of 503000053 is 350000305.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 503000053 - 2¹⁷ = 502868981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503000059) 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, 13236825 + ... + 13236862.

It is an arithmetic number, because the mean of its divisors is an integer number (132368440).

Almost surely, 2^503000053 is an apocalyptic number.

It is an amenable number.

503000053 is a deficient number, since it is larger than the sum of its proper divisors (26473707).

503000053 is a wasteful number, since it uses less digits than its factorization.

503000053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26473706.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 503000053 is about 22427.6626735824. The cubic root of 503000053 is about 795.2847907070.

Adding to 503000053 its reverse (350000305), we get a palindrome (853000358).

The spelling of 503000053 in words is "five hundred three million, fifty-three", and thus it is an aban number.