52251444 has 108 divisors (see below), whose sum is σ = 161834400. Its totient is φ = 14134176.

The previous prime is 52251401. The next prime is 52251449. The reversal of 52251444 is 44415225.

52251444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52251449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32737 + ... + 34295.

Almost surely, 2^52251444 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 52251444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80917200).

52251444 is an abundant number, since it is smaller than the sum of its proper divisors (109582956).

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

52251444 is a wasteful number, since it uses less digits than its factorization.

52251444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602 (or 1590 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 52251444 is about 7228.5160302790. The cubic root of 52251444 is about 373.8517623895.

Adding to 52251444 its reverse (44415225), we get a palindrome (96666669).

The spelling of 52251444 in words is "fifty-two million, two hundred fifty-one thousand, four hundred forty-four".