50172144 has 80 divisors (see below), whose sum is σ = 142490880. Its totient is φ = 15086080.

The previous prime is 50172121. The next prime is 50172149. The reversal of 50172144 is 44127105.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50172149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87892 + ... + 88460.

It is an arithmetic number, because the mean of its divisors is an integer number (1781136).

Almost surely, 2^50172144 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 50172144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71245440).

50172144 is an abundant number, since it is smaller than the sum of its proper divisors (92318736).

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

50172144 is a wasteful number, since it uses less digits than its factorization.

50172144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 50172144 is about 7083.2297717920. The cubic root of 50172144 is about 368.8254548646.

Adding to 50172144 its reverse (44127105), we get a palindrome (94299249).

It can be divided in two parts, 501 and 72144, that multiplied together give a square (36144144 = 6012²).

The spelling of 50172144 in words is "fifty million, one hundred seventy-two thousand, one hundred forty-four".