526620432313 has 4 divisors (see below), whose sum is σ = 557598104820. Its totient is φ = 495642759808.

The previous prime is 526620432229. The next prime is 526620432319. The reversal of 526620432313 is 313234026625.

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 188185042809 + 338435389504 = 433803^2 + 581752^2 .

It is a cyclic number.

It is not a de Polignac number, because 526620432313 - 2⁹ = 526620431801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (526620432319) 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, 15488836228 + ... + 15488836261.

It is an arithmetic number, because the mean of its divisors is an integer number (139399526205).

Almost surely, 2^526620432313 is an apocalyptic number.

It is an amenable number.

526620432313 is a deficient number, since it is larger than the sum of its proper divisors (30977672507).

526620432313 is a wasteful number, since it uses less digits than its factorization.

526620432313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30977672506.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 526620432313 its reverse (313234026625), we get a palindrome (839854458938).

The spelling of 526620432313 in words is "five hundred twenty-six billion, six hundred twenty million, four hundred thirty-two thousand, three hundred thirteen".