50130720 has 144 divisors (see below), whose sum is σ = 176746752. Its totient is φ = 12925440.

The previous prime is 50130719. The next prime is 50130761. The reversal of 50130720 is 2703105.

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 = 50130693 and 50130702.

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, 44079 + ... + 45201.

It is an arithmetic number, because the mean of its divisors is an integer number (1227408).

Almost surely, 2^50130720 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 50130720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88373376).

50130720 is an abundant number, since it is smaller than the sum of its proper divisors (126616032).

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

50130720 is a wasteful number, since it uses less digits than its factorization.

50130720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 50130720 is about 7080.3050781728. The cubic root of 50130720 is about 368.7239215494.

Adding to 50130720 its reverse (2703105), we get a palindrome (52833825).

The spelling of 50130720 in words is "fifty million, one hundred thirty thousand, seven hundred twenty".