26520052613 has 8 divisors (see below), whose sum is σ = 26908070400. Its totient is φ = 26134630720.

The previous prime is 26520052597. The next prime is 26520052661. The reversal of 26520052613 is 31625002562.

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 26520052613 - 2⁴ = 26520052597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26520052613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26520052813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628388 + ... + 669261.

It is an arithmetic number, because the mean of its divisors is an integer number (3363508800).

Almost surely, 2^26520052613 is an apocalyptic number.

It is an amenable number.

26520052613 is a deficient number, since it is larger than the sum of its proper divisors (388017787).

26520052613 is a wasteful number, since it uses less digits than its factorization.

26520052613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297947.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 26520052613 in words is "twenty-six billion, five hundred twenty million, fifty-two thousand, six hundred thirteen".