6725476081 has 3 divisors (see below), whose sum is σ = 6725558091. Its totient is φ = 6725394072.

The previous prime is 6725476073. The next prime is 6725476117. The reversal of 6725476081 is 1806745276.

It is a happy number.

The square root of 6725476081 is 82009.

It is a perfect power (a square), and thus also a powerful number.

6725476081 is digitally balanced in base 3, 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 6470754481 + 254721600 = 80441^2 + 15960^2 .

It is not a de Polignac number, because 6725476081 - 2³ = 6725476073 is a prime.

It is a super-2 number, since 2×6725476081² = 90464057032206237122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6725476001) 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 2 ways as a sum of consecutive naturals, for example, 41005 + ... + 123013.

It is an arithmetic number, because the mean of its divisors is an integer number (2241852697).

Almost surely, 2^6725476081 is an apocalyptic number.

6725476081 is the 82009-th square number.

6725476081 is the 41005-th centered octagonal number.

It is an amenable number.

6725476081 is a deficient number, since it is larger than the sum of its proper divisors (82010).

6725476081 is an frugal number, since it uses more digits than its factorization.

6725476081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164018 (or 82009 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The cubic root of 6725476081 is about 1887.5900417318.

The spelling of 6725476081 in words is "six billion, seven hundred twenty-five million, four hundred seventy-six thousand, eighty-one".