52145444 has 12 divisors (see below), whose sum is σ = 98274204. Its totient is φ = 24067104.

The previous prime is 52145417. The next prime is 52145447. The reversal of 52145444 is 44454125.

52145444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3564544 + 48580900 = 1888^2 + 6970^2 .

It is not an unprimeable number, because it can be changed into a prime (52145447) 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 3 ways as a sum of consecutive naturals, for example, 501347 + ... + 501450.

It is an arithmetic number, because the mean of its divisors is an integer number (8189517).

Almost surely, 2^52145444 is an apocalyptic number.

It is an amenable number.

52145444 is a deficient number, since it is larger than the sum of its proper divisors (46128760).

52145444 is a wasteful number, since it uses less digits than its factorization.

52145444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002814 (or 1002812 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 52145444 is about 7221.1802359448. The cubic root of 52145444 is about 373.5987861950.

Adding to 52145444 its reverse (44454125), we get a palindrome (96599569).

The spelling of 52145444 in words is "fifty-two million, one hundred forty-five thousand, four hundred forty-four".