52405444 has 24 divisors (see below), whose sum is σ = 112874048. Its totient is φ = 20731680.

The previous prime is 52405429. The next prime is 52405471. The reversal of 52405444 is 44450425.

52405444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 71622 + ... + 72349.

Almost surely, 2^52405444 is an apocalyptic number.

It is an amenable number.

52405444 is an abundant number, since it is smaller than the sum of its proper divisors (60468604).

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

52405444 is a wasteful number, since it uses less digits than its factorization.

52405444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143995 (or 143993 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 52405444 is about 7239.1604485603. The cubic root of 52405444 is about 374.2186849591.

Adding to 52405444 its reverse (44450425), we get a palindrome (96855869).

The spelling of 52405444 in words is "fifty-two million, four hundred five thousand, four hundred forty-four".