50505664555 has 4 divisors (see below), whose sum is σ = 60606797472. Its totient is φ = 40404531640.

The previous prime is 50505664507. The next prime is 50505664579. The reversal of 50505664555 is 55546650505.

50505664555 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.

It is not a de Polignac number, because 50505664555 - 2¹³ = 50505656363 is a prime.

It is a Duffinian 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, 5050566451 + ... + 5050566460.

It is an arithmetic number, because the mean of its divisors is an integer number (15151699368).

Almost surely, 2^50505664555 is an apocalyptic number.

50505664555 is a deficient number, since it is larger than the sum of its proper divisors (10101132917).

50505664555 is a wasteful number, since it uses less digits than its factorization.

50505664555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101132916.

The product of its (nonzero) digits is 2250000, while the sum is 46.

The spelling of 50505664555 in words is "fifty billion, five hundred five million, six hundred sixty-four thousand, five hundred fifty-five".