506211111005 has 8 divisors (see below), whose sum is σ = 607457175000. Its totient is φ = 404966327616.

The previous prime is 506211110939. The next prime is 506211111011. The reversal of 506211111005 is 500111112605.

It can be written as a sum of positive squares in 4 ways, for example, as 89600244889 + 416610866116 = 299333^2 + 645454^2 .

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 506211111005 - 2¹² = 506211106909 is a prime.

It is a super-2 number, since 2×506211111005² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245971 + ... + 1601519.

It is an arithmetic number, because the mean of its divisors is an integer number (75932146875).

Almost surely, 2^506211111005 is an apocalyptic number.

It is an amenable number.

506211111005 is a deficient number, since it is larger than the sum of its proper divisors (101246063995).

506211111005 is a wasteful number, since it uses less digits than its factorization.

506211111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640303.

The product of its (nonzero) digits is 300, while the sum is 23.

The spelling of 506211111005 in words is "five hundred six billion, two hundred eleven million, one hundred eleven thousand, five".