525613 has 8 divisors (see below), whose sum is σ = 582336. Its totient is φ = 470400.

The previous prime is 525607. The next prime is 525641. The reversal of 525613 is 316525.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525613 - 2⁹ = 525101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (72792).

2⁵²⁵⁶¹³ is an apocalyptic number.

It is an amenable number.

525613 is a deficient number, since it is larger than the sum of its proper divisors (56723).

525613 is a wasteful number, since it uses less digits than its factorization.

525613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755.

The product of its digits is 900, while the sum is 22.

The square root of 525613 is about 724.9917240907. The cubic root of 525613 is about 80.7028179226.

It can be divided in two parts, 52 and 5613, that added together give a palindrome (5665).

The spelling of 525613 in words is "five hundred twenty-five thousand, six hundred thirteen".