52225140 has 96 divisors (see below), whose sum is σ = 162642816. Its totient is φ = 12413440.

The previous prime is 52225133. The next prime is 52225141. The reversal of 52225140 is 4152225.

It is a happy number.

52225140 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 (52225141) 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 31 ways as a sum of consecutive naturals, for example, 34234 + ... + 35726.

It is an arithmetic number, because the mean of its divisors is an integer number (1694196).

Almost surely, 2^52225140 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 52225140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81321408).

52225140 is an abundant number, since it is smaller than the sum of its proper divisors (110417676).

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

52225140 is a wasteful number, since it uses less digits than its factorization.

52225140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52225140 is about 7226.6963406525. The cubic root of 52225140 is about 373.7890180478.

Adding to 52225140 its reverse (4152225), we get a palindrome (56377365).

The spelling of 52225140 in words is "fifty-two million, two hundred twenty-five thousand, one hundred forty".