10275500520721 has 4 divisors (see below), whose sum is σ = 10277204872500. Its totient is φ = 10273796168944.

The previous prime is 10275500520709. The next prime is 10275500520797. The reversal of 10275500520721 is 12702500557201.

10275500520721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6361972067025 + 3913528453696 = 2522295^2 + 1978264^2 .

It is a cyclic number.

It is not a de Polignac number, because 10275500520721 - 2⁴¹ = 8076477265169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10275500520421) 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, 852166846 + ... + 852178903.

It is an arithmetic number, because the mean of its divisors is an integer number (2569301218125).

Almost surely, 2^{10275500520721} is an apocalyptic number.

It is an amenable number.

10275500520721 is a deficient number, since it is larger than the sum of its proper divisors (1704351779).

10275500520721 is an equidigital number, since it uses as much as digits as its factorization.

10275500520721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704351778.

The product of its (nonzero) digits is 49000, while the sum is 37.

The spelling of 10275500520721 in words is "ten trillion, two hundred seventy-five billion, five hundred million, five hundred twenty thousand, seven hundred twenty-one".