503213172 has 192 divisors, whose sum is σ = 1544417280. Its totient is φ = 123724800.

The previous prime is 503213171. The next prime is 503213177. The reversal of 503213172 is 271312305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503213171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1401529 + ... + 1401887.

It is an arithmetic number, because the mean of its divisors is an integer number (8043840).

Almost surely, 2^503213172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503213172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772208640).

503213172 is an abundant number, since it is smaller than the sum of its proper divisors (1041204108).

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

503213172 is a wasteful number, since it uses less digits than its factorization.

503213172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 503213172 is about 22432.4134234371. The cubic root of 503213172 is about 795.3970944509.

Adding to 503213172 its reverse (271312305), we get a palindrome (774525477).

The spelling of 503213172 in words is "five hundred three million, two hundred thirteen thousand, one hundred seventy-two".