505706552109 has 48 divisors (see below), whose sum is σ = 816941833344. Its totient is φ = 298780876800.

The previous prime is 505706552107. The next prime is 505706552111. The reversal of 505706552109 is 901255607505.

505706552109 is a `hidden beast` number, since 5 + 0 + 570 + 6 + 55 + 21 + 0 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (505706552107) and next prime (505706552111).

It is not a de Polignac number, because 505706552109 - 2¹ = 505706552107 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505706552107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5241069 + ... + 5336685.

It is an arithmetic number, because the mean of its divisors is an integer number (17019621528).

Almost surely, 2^505706552109 is an apocalyptic number.

It is an amenable number.

505706552109 is a deficient number, since it is larger than the sum of its proper divisors (311235281235).

505706552109 is a wasteful number, since it uses less digits than its factorization.

505706552109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96978 (or 96975 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 45.

The spelling of 505706552109 in words is "five hundred five billion, seven hundred six million, five hundred fifty-two thousand, one hundred nine".