6725003242021 has 4 divisors (see below), whose sum is σ = 6725009743200. Its totient is φ = 6724996740844.

The previous prime is 6725003242003. The next prime is 6725003242073. The reversal of 6725003242021 is 1202423005276.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6725003242021 is a prime.

It is a super-4 number, since 4×6725003242021⁴ (a number of 52 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725003242421) 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, 1314601 + ... + 3895918.

It is an arithmetic number, because the mean of its divisors is an integer number (1681252435800).

Almost surely, 2^{6725003242021} is an apocalyptic number.

It is an amenable number.

6725003242021 is a deficient number, since it is larger than the sum of its proper divisors (6501179).

6725003242021 is a wasteful number, since it uses less digits than its factorization.

6725003242021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501178.

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 6725003242021 its reverse (1202423005276), we get a palindrome (7927426247297).

The spelling of 6725003242021 in words is "six trillion, seven hundred twenty-five billion, three million, two hundred forty-two thousand, twenty-one".