50512664563 has 4 divisors (see below), whose sum is σ = 51368811480. Its totient is φ = 49656517648.

The previous prime is 50512664443. The next prime is 50512664647. The reversal of 50512664563 is 36546621505.

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

It is a cyclic number.

It is not a de Polignac number, because 50512664563 - 2¹³ = 50512656371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50512664963) 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, 428073370 + ... + 428073487.

It is an arithmetic number, because the mean of its divisors is an integer number (12842202870).

Almost surely, 2^50512664563 is an apocalyptic number.

50512664563 is a deficient number, since it is larger than the sum of its proper divisors (856146917).

50512664563 is an equidigital number, since it uses as much as digits as its factorization.

50512664563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856146916.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 50512664563 in words is "fifty billion, five hundred twelve million, six hundred sixty-four thousand, five hundred sixty-three".