50731520 has 160 divisors (see below), whose sum is σ = 147312000. Its totient is φ = 16367616.

The previous prime is 50731507. The next prime is 50731561. The reversal of 50731520 is 2513705.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340406 + ... + 340554.

It is an arithmetic number, because the mean of its divisors is an integer number (920700).

Almost surely, 2^50731520 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 50731520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73656000).

50731520 is an abundant number, since it is smaller than the sum of its proper divisors (96580480).

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

50731520 is a wasteful number, since it uses less digits than its factorization.

50731520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 50731520 is about 7122.6062645636. The cubic root of 50731520 is about 370.1910870762.

The spelling of 50731520 in words is "fifty million, seven hundred thirty-one thousand, five hundred twenty".