512257 has 4 divisors (see below), whose sum is σ = 517636. Its totient is φ = 506880.

The previous prime is 512251. The next prime is 512269. The reversal of 512257 is 752215.

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 141376 + 370881 = 376^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 512257 - 2³ = 512249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2544 + ... + 2737.

It is an arithmetic number, because the mean of its divisors is an integer number (129409).

2⁵¹²²⁵⁷ is an apocalyptic number.

It is an amenable number.

512257 is a deficient number, since it is larger than the sum of its proper divisors (5379).

512257 is an equidigital number, since it uses as much as digits as its factorization.

512257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378.

The product of its digits is 700, while the sum is 22.

The square root of 512257 is about 715.7213144793. The cubic root of 512257 is about 80.0133831777.

The spelling of 512257 in words is "five hundred twelve thousand, two hundred fifty-seven".