524545 has 12 divisors (see below), whose sum is σ = 732564. Its totient is φ = 359520.

The previous prime is 524521. The next prime is 524591. The reversal of 524545 is 545425.

It can be written as a sum of positive squares in 2 ways, for example, as 370881 + 153664 = 609^2 + 392^2 .

It is not a de Polignac number, because 524545 - 2¹¹ = 522497 is a prime.

It is a d-powerful number, because it can be written as 5 + 2 + 5³ + 4⁹ + 4⁹ + 5³ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 826 + ... + 1315.

It is an arithmetic number, because the mean of its divisors is an integer number (61047).

2⁵²⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

524545 is a deficient number, since it is larger than the sum of its proper divisors (208019).

524545 is a wasteful number, since it uses less digits than its factorization.

524545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160 (or 2153 counting only the distinct ones).

The product of its digits is 4000, while the sum is 25.

The square root of 524545 is about 724.2547894215. The cubic root of 524545 is about 80.6481204850.

The spelling of 524545 in words is "five hundred twenty-four thousand, five hundred forty-five".