546686081 has 4 divisors (see below), whose sum is σ = 547150164. Its totient is φ = 546222000.

The previous prime is 546686059. The next prime is 546686131. The reversal of 546686081 is 180686645.

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 444999025 + 101687056 = 21095^2 + 10084^2 .

It is a cyclic number.

It is not a de Polignac number, because 546686081 - 2¹⁰ = 546685057 is a prime.

It is a super-2 number, since 2×546686081² = 597731342318277122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (546686381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230270 + ... + 232631.

It is an arithmetic number, because the mean of its divisors is an integer number (136787541).

Almost surely, 2^546686081 is an apocalyptic number.

It is an amenable number.

546686081 is a deficient number, since it is larger than the sum of its proper divisors (464083).

546686081 is a wasteful number, since it uses less digits than its factorization.

546686081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464082.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 546686081 is about 23381.3190603097. The cubic root of 546686081 is about 817.6724003663.

The spelling of 546686081 in words is "five hundred forty-six million, six hundred eighty-six thousand, eighty-one".