502257 has 8 divisors (see below), whose sum is σ = 765376. Its totient is φ = 286992.

The previous prime is 502247. The next prime is 502259. The reversal of 502257 is 752205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 502257 - 2⁸ = 502001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 23917 = 502257 / (5 + 0 + 2 + 2 + 5 + 7).

It is a Duffinian number.

502257 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 502257.

It is not an unprimeable number, because it can be changed into a prime (502259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11938 + ... + 11979.

It is an arithmetic number, because the mean of its divisors is an integer number (95672).

2⁵⁰²²⁵⁷ is an apocalyptic number.

It is an amenable number.

502257 is a deficient number, since it is larger than the sum of its proper divisors (263119).

502257 is a wasteful number, since it uses less digits than its factorization.

502257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23927.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 502257 is about 708.7009242269. The cubic root of 502257 is about 79.4892988246.

The spelling of 502257 in words is "five hundred two thousand, two hundred fifty-seven".