506656705 has 8 divisors (see below), whose sum is σ = 614256552. Its totient is φ = 401146368.

The previous prime is 506656699. The next prime is 506656727. The reversal of 506656705 is 507656605.

It can be written as a sum of positive squares in 4 ways, for example, as 198443569 + 308213136 = 14087^2 + 17556^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 506656705 - 2¹⁷ = 506525633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521842 + ... + 522811.

It is an arithmetic number, because the mean of its divisors is an integer number (76782069).

Almost surely, 2^506656705 is an apocalyptic number.

It is an amenable number.

506656705 is a deficient number, since it is larger than the sum of its proper divisors (107599847).

506656705 is a wasteful number, since it uses less digits than its factorization.

506656705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044755.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 506656705 is about 22509.0360744302. The cubic root of 506656705 is about 797.2072962052.

The spelling of 506656705 in words is "five hundred six million, six hundred fifty-six thousand, seven hundred five".