50518125523 has 4 divisors (see below), whose sum is σ = 51750274968. Its totient is φ = 49285976080.

The previous prime is 50518125503. The next prime is 50518125551. The reversal of 50518125523 is 32552181505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50518125523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50518125503) 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, 616074661 + ... + 616074742.

It is an arithmetic number, because the mean of its divisors is an integer number (12937568742).

Almost surely, 2^50518125523 is an apocalyptic number.

50518125523 is a deficient number, since it is larger than the sum of its proper divisors (1232149445).

50518125523 is a wasteful number, since it uses less digits than its factorization.

50518125523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232149444.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 50518125523 in words is "fifty billion, five hundred eighteen million, one hundred twenty-five thousand, five hundred twenty-three".