12825055052821 has 4 divisors (see below), whose sum is σ = 13990969148544. Its totient is φ = 11659140957100.

The previous prime is 12825055052813. The next prime is 12825055052837.

12825055052821 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12825055052821 - 2³ = 12825055052813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12825055052881) 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 3 ways as a sum of consecutive naturals, for example, 582957047845 + ... + 582957047866.

It is an arithmetic number, because the mean of its divisors is an integer number (3497742287136).

Almost surely, 2^{12825055052821} is an apocalyptic number.

12825055052821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12825055052821 is a deficient number, since it is larger than the sum of its proper divisors (1165914095723).

12825055052821 is a wasteful number, since it uses less digits than its factorization.

12825055052821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165914095722.

The product of its (nonzero) digits is 640000, while the sum is 46.

The spelling of 12825055052821 in words is "twelve trillion, eight hundred twenty-five billion, fifty-five million, fifty-two thousand, eight hundred twenty-one".