522755 has 4 divisors (see below), whose sum is σ = 627312. Its totient is φ = 418200.

The previous prime is 522749. The next prime is 522757. The reversal of 522755 is 557225.

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

It is a de Polignac number, because none of the positive numbers 2^k-522755 is a prime.

It is a Duffinian 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52271 + ... + 52280.

It is an arithmetic number, because the mean of its divisors is an integer number (156828).

2⁵²²⁷⁵⁵ is an apocalyptic number.

522755 is a deficient number, since it is larger than the sum of its proper divisors (104557).

522755 is a wasteful number, since it uses less digits than its factorization.

522755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104556.

The product of its digits is 3500, while the sum is 26.

The square root of 522755 is about 723.0179804127. The cubic root of 522755 is about 80.5562792026.

Subtracting from 522755 its sum of digits (26), we obtain a square (522729 = 723²).

The spelling of 522755 in words is "five hundred twenty-two thousand, seven hundred fifty-five".