50515101172 has 12 divisors (see below), whose sum is σ = 88470661860. Its totient is φ = 25237769216.

The previous prime is 50515101157. The next prime is 50515101179. The reversal of 50515101172 is 27110151505.

It can be written as a sum of positive squares in 2 ways, for example, as 23643367696 + 26871733476 = 153764^2 + 163926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50515101172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50515101179) 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, 4939597 + ... + 4949812.

It is an arithmetic number, because the mean of its divisors is an integer number (7372555155).

Almost surely, 2^50515101172 is an apocalyptic number.

It is an amenable number.

50515101172 is a deficient number, since it is larger than the sum of its proper divisors (37955560688).

50515101172 is a wasteful number, since it uses less digits than its factorization.

50515101172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890690 (or 9890688 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 28.

Adding to 50515101172 its reverse (27110151505), we get a palindrome (77625252677).

The spelling of 50515101172 in words is "fifty billion, five hundred fifteen million, one hundred one thousand, one hundred seventy-two".