10521505524139 has 4 divisors (see below), whose sum is σ = 10526392430856. Its totient is φ = 10516618617424.

The previous prime is 10521505524071. The next prime is 10521505524143. The reversal of 10521505524139 is 93142550512501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10521505524139 - 2²⁹ = 10520968653227 is a prime.

It is a super-2 number, since 2×10521505524139² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10521505524095 and 10521505524104.

It is not an unprimeable number, because it can be changed into a prime (10521505524149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443450129 + ... + 2443454434.

It is an arithmetic number, because the mean of its divisors is an integer number (2631598107714).

Almost surely, 2^{10521505524139} is an apocalyptic number.

10521505524139 is a deficient number, since it is larger than the sum of its proper divisors (4886906717).

10521505524139 is an equidigital number, since it uses as much as digits as its factorization.

10521505524139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886906716.

The product of its (nonzero) digits is 270000, while the sum is 43.

The spelling of 10521505524139 in words is "ten trillion, five hundred twenty-one billion, five hundred five million, five hundred twenty-four thousand, one hundred thirty-nine".