539054581 has 32 divisors (see below), whose sum is σ = 640332000. Its totient is φ = 449003520.

The previous prime is 539054561. The next prime is 539054617. The reversal of 539054581 is 185450935.

It can be written as a sum of positive squares in 16 ways, for example, as 16200625 + 522853956 = 4025^2 + 22866^2 .

It is not a de Polignac number, because 539054581 - 2¹⁷ = 538923509 is a prime.

It is a super-2 number, since 2×539054581² = 581159682594171122, which contains 22 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 (539054521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1544395 + ... + 1544743.

It is an arithmetic number, because the mean of its divisors is an integer number (20010375).

Almost surely, 2^539054581 is an apocalyptic number.

It is an amenable number.

539054581 is a deficient number, since it is larger than the sum of its proper divisors (101277419).

539054581 is a wasteful number, since it uses less digits than its factorization.

539054581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 539054581 is about 23217.5489877808. The cubic root of 539054581 is about 813.8497736642.

The spelling of 539054581 in words is "five hundred thirty-nine million, fifty-four thousand, five hundred eighty-one".