563257 has 4 divisors (see below), whose sum is σ = 576400. Its totient is φ = 550116.

The previous prime is 563249. The next prime is 563263. The reversal of 563257 is 752365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 752365 = 5 ⋅150473.

It is a cyclic number.

It is not a de Polignac number, because 563257 - 2³ = 563249 is a prime.

It is a Duffinian number.

563257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (563287) 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, 6507 + ... + 6592.

It is an arithmetic number, because the mean of its divisors is an integer number (144100).

2⁵⁶³²⁵⁷ is an apocalyptic number.

It is an amenable number.

563257 is a deficient number, since it is larger than the sum of its proper divisors (13143).

563257 is a wasteful number, since it uses less digits than its factorization.

563257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13142.

The product of its digits is 6300, while the sum is 28.

The square root of 563257 is about 750.5044969885. The cubic root of 563257 is about 82.5851951258.

It can be divided in two parts, 563 and 257, that added together give a triangular number (820 = T₄₀).

The spelling of 563257 in words is "five hundred sixty-three thousand, two hundred fifty-seven".