506363046053561 has 4 divisors (see below), whose sum is σ = 506376730468752. Its totient is φ = 506349361638372.

The previous prime is 506363046053551. The next prime is 506363046053567. The reversal of 506363046053561 is 165350640363605.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506363046053561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506363046053567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6842152091 + ... + 6842226096.

It is an arithmetic number, because the mean of its divisors is an integer number (126594182617188).

Almost surely, 2^{506363046053561} is an apocalyptic number.

It is an amenable number.

506363046053561 is a deficient number, since it is larger than the sum of its proper divisors (13684415191).

506363046053561 is a wasteful number, since it uses less digits than its factorization.

506363046053561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13684415190.

The product of its (nonzero) digits is 17496000, while the sum is 53.

The spelling of 506363046053561 in words is "five hundred six trillion, three hundred sixty-three billion, forty-six million, fifty-three thousand, five hundred sixty-one".