52385540 has 12 divisors (see below), whose sum is σ = 110009676. Its totient is φ = 20954208.

The previous prime is 52385539. The next prime is 52385561. The reversal of 52385540 is 4558325.

52385540 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 31719424 + 20666116 = 5632^2 + 4546^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52385497 and 52385506.

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 3 ways as a sum of consecutive naturals, for example, 1309619 + ... + 1309658.

It is an arithmetic number, because the mean of its divisors is an integer number (9167473).

Almost surely, 2^52385540 is an apocalyptic number.

It is an amenable number.

52385540 is an abundant number, since it is smaller than the sum of its proper divisors (57624136).

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

52385540 is a wasteful number, since it uses less digits than its factorization.

52385540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619286 (or 2619284 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 52385540 is about 7237.7855729498. The cubic root of 52385540 is about 374.1713018927.

It can be divided in two parts, 52385 and 540, that added together give a palindrome (52925).

The spelling of 52385540 in words is "fifty-two million, three hundred eighty-five thousand, five hundred forty".