53725144 has 32 divisors (see below), whose sum is σ = 110532240. Its totient is φ = 24278400.

The previous prime is 53725121. The next prime is 53725163. The reversal of 53725144 is 44152735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14242 + ... + 17614.

Almost surely, 2^53725144 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 53725144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55266120).

53725144 is an abundant number, since it is smaller than the sum of its proper divisors (56807096).

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

53725144 is a wasteful number, since it uses less digits than its factorization.

53725144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571 (or 3567 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 53725144 is about 7329.7437881552. The cubic root of 53725144 is about 377.3339333593. Note that the first 3 decimals are identical.

Adding to 53725144 its reverse (44152735), we get a palindrome (97877879).

It can be divided in two parts, 537251 and 44, that multiplied together give a square (23639044 = 4862²).

The spelling of 53725144 in words is "fifty-three million, seven hundred twenty-five thousand, one hundred forty-four".