522751 has 4 divisors (see below), whose sum is σ = 534952. Its totient is φ = 510552.

The previous prime is 522749. The next prime is 522757. The reversal of 522751 is 157225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 522751 - 2¹ = 522749 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6036 + ... + 6121.

It is an arithmetic number, because the mean of its divisors is an integer number (133738).

2⁵²²⁷⁵¹ is an apocalyptic number.

522751 is a deficient number, since it is larger than the sum of its proper divisors (12201).

522751 is a wasteful number, since it uses less digits than its factorization.

522751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12200.

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

The square root of 522751 is about 723.0152142244. The cubic root of 522751 is about 80.5560737360.

Subtracting from 522751 its sum of digits (22), we obtain a square (522729 = 723²).

Adding to 522751 its reverse (157225), we get a palindrome (679976).

The spelling of 522751 in words is "five hundred twenty-two thousand, seven hundred fifty-one".