50217120 has 144 divisors (see below), whose sum is σ = 175567392. Its totient is φ = 13063680.

The previous prime is 50217049. The next prime is 50217127. The reversal of 50217120 is 2171205.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50217093 and 50217102.

It is not an unprimeable number, because it can be changed into a prime (50217127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61515 + ... + 62325.

It is an arithmetic number, because the mean of its divisors is an integer number (1219218).

Almost surely, 2^50217120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50217120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87783696).

50217120 is an abundant number, since it is smaller than the sum of its proper divisors (125350272).

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

50217120 is a wasteful number, since it uses less digits than its factorization.

50217120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 50217120 is about 7086.4038834941. The cubic root of 50217120 is about 368.9356311366.

Adding to 50217120 its reverse (2171205), we get a palindrome (52388325).

The spelling of 50217120 in words is "fifty million, two hundred seventeen thousand, one hundred twenty".