503257 has 4 divisors (see below), whose sum is σ = 506340. Its totient is φ = 500176.

The previous prime is 503249. The next prime is 503267. The reversal of 503257 is 752305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 447561 + 55696 = 669^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 503257 - 2³ = 503249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282 + ... + 1627.

It is an arithmetic number, because the mean of its divisors is an integer number (126585).

2⁵⁰³²⁵⁷ is an apocalyptic number.

It is an amenable number.

503257 is a deficient number, since it is larger than the sum of its proper divisors (3083).

503257 is a wasteful number, since it uses less digits than its factorization.

503257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 503257 is about 709.4060896271. The cubic root of 503257 is about 79.5420185826.

The spelling of 503257 in words is "five hundred three thousand, two hundred fifty-seven".