526087313 has 4 divisors (see below), whose sum is σ = 528813348. Its totient is φ = 523361280.

The previous prime is 526087279. The next prime is 526087337. The reversal of 526087313 is 313780625.

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 243578449 + 282508864 = 15607^2 + 16808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-526087313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (526087613) 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, 1362728 + ... + 1363113.

It is an arithmetic number, because the mean of its divisors is an integer number (132203337).

Almost surely, 2^526087313 is an apocalyptic number.

It is an amenable number.

526087313 is a deficient number, since it is larger than the sum of its proper divisors (2726035).

526087313 is a wasteful number, since it uses less digits than its factorization.

526087313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726034.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 526087313 is about 22936.5933172300. The cubic root of 526087313 is about 807.2708602305.

The spelling of 526087313 in words is "five hundred twenty-six million, eighty-seven thousand, three hundred thirteen".