505795059985 has 8 divisors (see below), whose sum is σ = 627883522920. Its totient is φ = 390683080704.

The previous prime is 505795059943. The next prime is 505795059997. The reversal of 505795059985 is 589950597505.

It can be written as a sum of positive squares in 4 ways, for example, as 2909847249 + 502885212736 = 53943^2 + 709144^2 .

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 505795059985 - 2³⁷ = 368356106513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505795059985.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744120752 + ... + 1744121041.

It is an arithmetic number, because the mean of its divisors is an integer number (78485440365).

Almost surely, 2^505795059985 is an apocalyptic number.

It is an amenable number.

505795059985 is a deficient number, since it is larger than the sum of its proper divisors (122088462935).

505795059985 is a wasteful number, since it uses less digits than its factorization.

505795059985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488241827.

The product of its (nonzero) digits is 127575000, while the sum is 67.

The spelling of 505795059985 in words is "five hundred five billion, seven hundred ninety-five million, fifty-nine thousand, nine hundred eighty-five".