50131872 has 168 divisors, whose sum is σ = 169668576. Its totient is φ = 14276736.

The previous prime is 50131871. The next prime is 50131891. The reversal of 50131872 is 27813105.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (50131871) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 163143 + ... + 163449.

It is an arithmetic number, because the mean of its divisors is an integer number (1009932).

Almost surely, 2^50131872 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 50131872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84834288).

50131872 is an abundant number, since it is smaller than the sum of its proper divisors (119536704).

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

50131872 is an equidigital number, since it uses as much as digits as its factorization.

50131872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 50131872 is about 7080.3864301322. The cubic root of 50131872 is about 368.7267459433.

Adding to 50131872 its reverse (27813105), we get a palindrome (77944977).

The spelling of 50131872 in words is "fifty million, one hundred thirty-one thousand, eight hundred seventy-two".