526013 has 4 divisors (see below), whose sum is σ = 528540. Its totient is φ = 523488.

The previous prime is 525983. The next prime is 526027. The reversal of 526013 is 310625.

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 386884 + 139129 = 622^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 526013 - 2⁶ = 525949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 525982 and 526000.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 526013.

It is not an unprimeable number, because it can be changed into a prime (526063) 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, 920 + ... + 1377.

It is an arithmetic number, because the mean of its divisors is an integer number (132135).

2⁵²⁶⁰¹³ is an apocalyptic number.

It is an amenable number.

526013 is a deficient number, since it is larger than the sum of its proper divisors (2527).

526013 is a wasteful number, since it uses less digits than its factorization.

526013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 526013 is about 725.2675368442. The cubic root of 526013 is about 80.7232847818.

Adding to 526013 its reverse (310625), we get a palindrome (836638).

The spelling of 526013 in words is "five hundred twenty-six thousand, thirteen".