50172220 has 24 divisors (see below), whose sum is σ = 120413664. Its totient is φ = 17201856.

The previous prime is 50172209. The next prime is 50172263. The reversal of 50172220 is 2227105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179047 + ... + 179326.

It is an arithmetic number, because the mean of its divisors is an integer number (5017236).

Almost surely, 2^50172220 is an apocalyptic number.

It is an amenable number.

50172220 is an abundant number, since it is smaller than the sum of its proper divisors (70241444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50172220 is a wasteful number, since it uses less digits than its factorization.

50172220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358389 (or 358387 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 50172220 is about 7083.2351365742. The cubic root of 50172220 is about 368.8256410949.

Adding to 50172220 its reverse (2227105), we get a palindrome (52399325).

The spelling of 50172220 in words is "fifty million, one hundred seventy-two thousand, two hundred twenty".