52439144 has 16 divisors (see below), whose sum is σ = 98400420. Its totient is φ = 26199040.

The previous prime is 52439143. The next prime is 52439161. The reversal of 52439144 is 44193425.

It can be written as a sum of positive squares in 2 ways, for example, as 51696100 + 743044 = 7190^2 + 862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52439144.

It is not an unprimeable number, because it can be changed into a prime (52439143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17672 + ... + 20424.

Almost surely, 2^52439144 is an apocalyptic number.

It is an amenable number.

52439144 is a deficient number, since it is larger than the sum of its proper divisors (45961276).

52439144 is a wasteful number, since it uses less digits than its factorization.

52439144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140 (or 5136 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 52439144 is about 7241.4876924566. The cubic root of 52439144 is about 374.2988831626.

The spelling of 52439144 in words is "fifty-two million, four hundred thirty-nine thousand, one hundred forty-four".