52409444 has 6 divisors (see below), whose sum is σ = 91716534. Its totient is φ = 26204720.

The previous prime is 52409411. The next prime is 52409449. The reversal of 52409444 is 44490425.

It can be written as a sum of positive squares in only one way, i.e., 43033600 + 9375844 = 6560^2 + 3062^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52409444.

It is not an unprimeable number, because it can be changed into a prime (52409449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551177 + ... + 6551184.

It is an arithmetic number, because the mean of its divisors is an integer number (15286089).

Almost surely, 2^52409444 is an apocalyptic number.

It is an amenable number.

52409444 is a deficient number, since it is larger than the sum of its proper divisors (39307090).

52409444 is a wasteful number, since it uses less digits than its factorization.

52409444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13102365 (or 13102363 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 52409444 is about 7239.4367184195. The cubic root of 52409444 is about 374.2282058316.

Adding to 52409444 its reverse (44490425), we get a palindrome (96899869).

The spelling of 52409444 in words is "fifty-two million, four hundred nine thousand, four hundred forty-four".