50172170 has 16 divisors (see below), whose sum is σ = 91548360. Its totient is φ = 19793664.

The previous prime is 50172169. The next prime is 50172173. The reversal of 50172170 is 7127105.

It is a happy number.

50172170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43705321 + 6466849 = 6611^2 + 2543^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50172173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33635 + ... + 35094.

Almost surely, 2^50172170 is an apocalyptic number.

50172170 is a deficient number, since it is larger than the sum of its proper divisors (41376190).

50172170 is a wasteful number, since it uses less digits than its factorization.

50172170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68809.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 50172170 is about 7083.2316071127. The cubic root of 50172170 is about 368.8255185750.

Adding to 50172170 its reverse (7127105), we get a palindrome (57299275).

The spelling of 50172170 in words is "fifty million, one hundred seventy-two thousand, one hundred seventy".