539666507 has 4 divisors (see below), whose sum is σ = 557075136. Its totient is φ = 522257880.

The previous prime is 539666483. The next prime is 539666579. The reversal of 539666507 is 705666935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 539666507 - 2⁸ = 539666251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539666807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8704268 + ... + 8704329.

It is an arithmetic number, because the mean of its divisors is an integer number (139268784).

Almost surely, 2^539666507 is an apocalyptic number.

539666507 is a deficient number, since it is larger than the sum of its proper divisors (17408629).

539666507 is a wasteful number, since it uses less digits than its factorization.

539666507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17408628.

The product of its (nonzero) digits is 1020600, while the sum is 47.

The square root of 539666507 is about 23230.7233421605. The cubic root of 539666507 is about 814.1576135543.

The spelling of 539666507 in words is "five hundred thirty-nine million, six hundred sixty-six thousand, five hundred seven".