539622065 has 4 divisors (see below), whose sum is σ = 647546484. Its totient is φ = 431697648.

The previous prime is 539622019. The next prime is 539622077. The reversal of 539622065 is 560226935.

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 148254976 + 391367089 = 12176^2 + 19783^2 .

It is a cyclic number.

It is not a de Polignac number, because 539622065 - 2⁶ = 539622001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53962202 + ... + 53962211.

It is an arithmetic number, because the mean of its divisors is an integer number (161886621).

Almost surely, 2^539622065 is an apocalyptic number.

It is an amenable number.

539622065 is a deficient number, since it is larger than the sum of its proper divisors (107924419).

539622065 is a wasteful number, since it uses less digits than its factorization.

539622065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107924418.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 539622065 is about 23229.7667874647. The cubic root of 539622065 is about 814.1352640814.

The spelling of 539622065 in words is "five hundred thirty-nine million, six hundred twenty-two thousand, sixty-five".