526323613 has 8 divisors (see below), whose sum is σ = 532560600. Its totient is φ = 520112448.

The previous prime is 526323593. The next prime is 526323643. The reversal of 526323613 is 316323625.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32684089 + 493639524 = 5717^2 + 22218^2 .

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 526323613 - 2⁹ = 526323101 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 (526323643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36195 + ... + 48607.

It is an arithmetic number, because the mean of its divisors is an integer number (66570075).

Almost surely, 2^526323613 is an apocalyptic number.

It is an amenable number.

526323613 is a deficient number, since it is larger than the sum of its proper divisors (6236987).

526323613 is a wasteful number, since it uses less digits than its factorization.

526323613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12911.

The product of its digits is 19440, while the sum is 31.

The square root of 526323613 is about 22941.7438962255. The cubic root of 526323613 is about 807.3917080734.

The spelling of 526323613 in words is "five hundred twenty-six million, three hundred twenty-three thousand, six hundred thirteen".