50101920 has 144 divisors (see below), whose sum is σ = 186574752. Its totient is φ = 12142080.

The previous prime is 50101903. The next prime is 50101939. The reversal of 50101920 is 2910105.

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 = 50101893 and 50101902.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14259 + ... + 17421.

It is an arithmetic number, because the mean of its divisors is an integer number (1295658).

Almost surely, 2^50101920 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 50101920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93287376).

50101920 is an abundant number, since it is smaller than the sum of its proper divisors (136472832).

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

50101920 is a wasteful number, since it uses less digits than its factorization.

50101920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195 (or 3184 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 50101920 is about 7078.2709753159. The cubic root of 50101920 is about 368.6532976341.

The spelling of 50101920 in words is "fifty million, one hundred one thousand, nine hundred twenty".