10500210505 has 4 divisors (see below), whose sum is σ = 12600252612. Its totient is φ = 8400168400.

The previous prime is 10500210491. The next prime is 10500210527. The reversal of 10500210505 is 50501200501.

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 1358364736 + 9141845769 = 36856^2 + 95613^2 .

It is not a de Polignac number, because 10500210505 - 2²⁵ = 10466656073 is a prime.

It is a super-2 number, since 2×10500210505² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050021046 + ... + 1050021055.

It is an arithmetic number, because the mean of its divisors is an integer number (3150063153).

Almost surely, 2^10500210505 is an apocalyptic number.

It is an amenable number.

10500210505 is a deficient number, since it is larger than the sum of its proper divisors (2100042107).

10500210505 is an equidigital number, since it uses as much as digits as its factorization.

10500210505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100042106.

The product of its (nonzero) digits is 250, while the sum is 19.

The spelling of 10500210505 in words is "ten billion, five hundred million, two hundred ten thousand, five hundred five".