503172 has 30 divisors (see below), whose sum is σ = 1316238. Its totient is φ = 167616.

The previous prime is 503159. The next prime is 503197. The reversal of 503172 is 271305.

It can be written as a sum of positive squares in only one way, i.e., 331776 + 171396 = 576^2 + 414^2 .

It is a super-3 number, since 3×503172³ = 382182372874033344, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 503172.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 453 + ... + 1100.

2⁵⁰³¹⁷² is an apocalyptic number.

It is an amenable number.

503172 is an abundant number, since it is smaller than the sum of its proper divisors (813066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503172 is a wasteful number, since it uses less digits than its factorization.

503172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 503172 is about 709.3461778286. The cubic root of 503172 is about 79.5375401204.

Adding to 503172 its reverse (271305), we get a palindrome (774477).

The spelling of 503172 in words is "five hundred three thousand, one hundred seventy-two".