495257 has 8 divisors (see below), whose sum is σ = 571200. Its totient is φ = 420624.

The previous prime is 495241. The next prime is 495269. The reversal of 495257 is 752594.

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

It is a cyclic number.

It is not a de Polignac number, because 495257 - 2⁴ = 495241 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (495277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (71400).

2⁴⁹⁵²⁵⁷ is an apocalyptic number.

It is an amenable number.

495257 is a deficient number, since it is larger than the sum of its proper divisors (75943).

495257 is a wasteful number, since it uses less digits than its factorization.

495257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its digits is 12600, while the sum is 32.

The square root of 495257 is about 703.7449822201. The cubic root of 495257 is about 79.1182867222.

The spelling of 495257 in words is "four hundred ninety-five thousand, two hundred fifty-seven".