50505006613 has 4 divisors (see below), whose sum is σ = 50513304448. Its totient is φ = 50496708780.

The previous prime is 50505006611. The next prime is 50505006647. The reversal of 50505006613 is 31660050505.

50505006613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 50505006613 - 2¹ = 50505006611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505006611) 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, 4139781 + ... + 4151962.

It is an arithmetic number, because the mean of its divisors is an integer number (12628326112).

Almost surely, 2^50505006613 is an apocalyptic number.

It is an amenable number.

50505006613 is a deficient number, since it is larger than the sum of its proper divisors (8297835).

50505006613 is an equidigital number, since it uses as much as digits as its factorization.

50505006613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297834.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 50505006613 in words is "fifty billion, five hundred five million, six thousand, six hundred thirteen".