50501488251 has 4 divisors (see below), whose sum is σ = 67335317672. Its totient is φ = 33667658832.

The previous prime is 50501488237. The next prime is 50501488253. The reversal of 50501488251 is 15288410505.

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

It is not a de Polignac number, because 50501488251 - 2¹⁸ = 50501226107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50501488253) 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, 8416914706 + ... + 8416914711.

It is an arithmetic number, because the mean of its divisors is an integer number (16833829418).

Almost surely, 2^50501488251 is an apocalyptic number.

50501488251 is a deficient number, since it is larger than the sum of its proper divisors (16833829421).

50501488251 is a wasteful number, since it uses less digits than its factorization.

50501488251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16833829420.

The product of its (nonzero) digits is 64000, while the sum is 39.

Adding to 50501488251 its reverse (15288410505), we get a palindrome (65789898756).

The spelling of 50501488251 in words is "fifty billion, five hundred one million, four hundred eighty-eight thousand, two hundred fifty-one".