503213249 has 16 divisors (see below), whose sum is σ = 649019520. Its totient is φ = 378591360.

The previous prime is 503213237. The next prime is 503213279. The reversal of 503213249 is 942312305.

It is not a de Polignac number, because 503213249 - 2¹² = 503209153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503213279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110444 + ... + 114909.

It is an arithmetic number, because the mean of its divisors is an integer number (40563720).

Almost surely, 2^503213249 is an apocalyptic number.

It is an amenable number.

503213249 is a deficient number, since it is larger than the sum of its proper divisors (145806271).

503213249 is a wasteful number, since it uses less digits than its factorization.

503213249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225400.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 503213249 is about 22432.4151397035. The cubic root of 503213249 is about 795.3971350206.

It can be divided in two parts, 5032 and 13249, that added together give a palindrome (18281).

The spelling of 503213249 in words is "five hundred three million, two hundred thirteen thousand, two hundred forty-nine".