50515010123 has 4 divisors (see below), whose sum is σ = 50517753168. Its totient is φ = 50512267080.

The previous prime is 50515010113. The next prime is 50515010131. The reversal of 50515010123 is 32101051505.

It is a happy number.

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 50515010123 - 2¹⁶ = 50514944587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50515010113) 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, 1343711 + ... + 1380792.

It is an arithmetic number, because the mean of its divisors is an integer number (12629438292).

Almost surely, 2^50515010123 is an apocalyptic number.

50515010123 is a deficient number, since it is larger than the sum of its proper divisors (2743045).

50515010123 is a wasteful number, since it uses less digits than its factorization.

50515010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743044.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 50515010123 its reverse (32101051505), we get a palindrome (82616061628).

The spelling of 50515010123 in words is "fifty billion, five hundred fifteen million, ten thousand, one hundred twenty-three".