539515223289 has 135 divisors (see below), whose sum is σ = 955470536031. Its totient is φ = 302503481280.

The previous prime is 539515223287. The next prime is 539515223309. The reversal of 539515223289 is 982322515935.

The square root of 539515223289 is 734517.

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

539515223289 is a `hidden beast` number, since 5 + 3 + 9 + 5 + 1 + 522 + 32 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103598365689 + 435916857600 = 321867^2 + 660240^2 .

It is not a de Polignac number, because 539515223289 - 2¹ = 539515223287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (539515223287) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 4118436754 + ... + 4118436884.

Almost surely, 2^539515223289 is an apocalyptic number.

539515223289 is the 734517-th square number.

539515223289 is the 367259-th centered octagonal number.

It is an amenable number.

539515223289 is a deficient number, since it is larger than the sum of its proper divisors (415955312742).

539515223289 is an frugal number, since it uses more digits than its factorization.

539515223289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 230 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The spelling of 539515223289 in words is "five hundred thirty-nine billion, five hundred fifteen million, two hundred twenty-three thousand, two hundred eighty-nine".