50857530505 has 4 divisors (see below), whose sum is σ = 61029036612. Its totient is φ = 40686024400.

The previous prime is 50857530443. The next prime is 50857530523. The reversal of 50857530505 is 50503575805.

50857530505 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 can be written as a sum of positive squares in 2 ways, for example, as 27686297664 + 23171232841 = 166392^2 + 152221^2 .

It is not a de Polignac number, because 50857530505 - 2³³ = 42267595913 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, 5085753046 + ... + 5085753055.

It is an arithmetic number, because the mean of its divisors is an integer number (15257259153).

Almost surely, 2^50857530505 is an apocalyptic number.

It is an amenable number.

50857530505 is a deficient number, since it is larger than the sum of its proper divisors (10171506107).

50857530505 is a wasteful number, since it uses less digits than its factorization.

50857530505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171506106.

The product of its (nonzero) digits is 525000, while the sum is 43.

The spelling of 50857530505 in words is "fifty billion, eight hundred fifty-seven million, five hundred thirty thousand, five hundred five".