524281 has 4 divisors (see below), whose sum is σ = 526500. Its totient is φ = 522064.

The previous prime is 524269. The next prime is 524287. The reversal of 524281 is 182425.

524281 is nontrivially palindromic in base 8.

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 210681 + 313600 = 459^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 524281 - 2¹¹ = 522233 is a prime.

It is a super-2 number, since 2×524281² = 549741133922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (524287) 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, 706 + ... + 1243.

It is an arithmetic number, because the mean of its divisors is an integer number (131625).

524281 is a Friedman number, since it can be written as (2^21-8)/4-5, using all its digits and the basic arithmetic operations.

2⁵²⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

524281 is a deficient number, since it is larger than the sum of its proper divisors (2219).

524281 is a wasteful number, since it uses less digits than its factorization.

524281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218.

The product of its digits is 640, while the sum is 22.

The square root of 524281 is about 724.0725101811. The cubic root of 524281 is about 80.6345883274.

The spelling of 524281 in words is "five hundred twenty-four thousand, two hundred eighty-one".