50001920 has 96 divisors (see below), whose sum is σ = 126781200. Its totient is φ = 18874368.

The previous prime is 50001877. The next prime is 50001923. The reversal of 50001920 is 2910005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50001923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194432 + ... + 194688.

Almost surely, 2^50001920 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 50001920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63390600).

50001920 is an abundant number, since it is smaller than the sum of its proper divisors (76779280).

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

50001920 is a wasteful number, since it uses less digits than its factorization.

50001920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 50001920 is about 7071.2035750641. The cubic root of 50001920 is about 368.4078653640.

Adding to 50001920 its reverse (2910005), we get a palindrome (52911925).

The spelling of 50001920 in words is "fifty million, one thousand, nine hundred twenty".