503105253 has 32 divisors (see below), whose sum is σ = 795586560. Its totient is φ = 276696000.

The previous prime is 503105227. The next prime is 503105257. The reversal of 503105253 is 352501305.

It is not a de Polignac number, because 503105253 - 2⁸ = 503104997 is a prime.

It is a super-2 number, since 2×503105253² = 506229791192388018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503105257) 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 31 ways as a sum of consecutive naturals, for example, 222378 + ... + 224628.

It is an arithmetic number, because the mean of its divisors is an integer number (24862080).

Almost surely, 2^503105253 is an apocalyptic number.

It is an amenable number.

503105253 is a deficient number, since it is larger than the sum of its proper divisors (292481307).

503105253 is a wasteful number, since it uses less digits than its factorization.

503105253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 503105253 is about 22430.0078689242. The cubic root of 503105253 is about 795.3402301498.

Adding to 503105253 its reverse (352501305), we get a palindrome (855606558).

The spelling of 503105253 in words is "five hundred three million, one hundred five thousand, two hundred fifty-three".