508257 has 6 divisors (see below), whose sum is σ = 734162. Its totient is φ = 338832.

The previous prime is 508243. The next prime is 508259. The reversal of 508257 is 752805.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 40401 = 684^2 + 201^2 .

It is not a de Polignac number, because 508257 - 2⁷ = 508129 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 508257.

It is not an unprimeable number, because it can be changed into a prime (508259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28228 + ... + 28245.

2⁵⁰⁸²⁵⁷ is an apocalyptic number.

It is an amenable number.

508257 is a deficient number, since it is larger than the sum of its proper divisors (225905).

508257 is a wasteful number, since it uses less digits than its factorization.

508257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56479 (or 56476 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 508257 is about 712.9214542991. The cubic root of 508257 is about 79.8045750858.

The spelling of 508257 in words is "five hundred eight thousand, two hundred fifty-seven".