506552036631785 has 4 divisors (see below), whose sum is σ = 607862443958148. Its totient is φ = 405241629305424.

The previous prime is 506552036631593. The next prime is 506552036631793. The reversal of 506552036631785 is 587136630255605.

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

It can be written as a sum of positive squares in 2 ways, for example, as 112833937118224 + 393718099513561 = 10622332^2 + 19842331^2 .

It is a cyclic number.

It is not a de Polignac number, because 506552036631785 - 2²² = 506552032437481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50655203663174 + ... + 50655203663183.

It is an arithmetic number, because the mean of its divisors is an integer number (151965610989537).

Almost surely, 2^{506552036631785} is an apocalyptic number.

It is an amenable number.

506552036631785 is a deficient number, since it is larger than the sum of its proper divisors (101310407326363).

506552036631785 is a wasteful number, since it uses less digits than its factorization.

506552036631785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101310407326362.

The product of its (nonzero) digits is 136080000, while the sum is 62.

The spelling of 506552036631785 in words is "five hundred six trillion, five hundred fifty-two billion, thirty-six million, six hundred thirty-one thousand, seven hundred eighty-five".