52845040 has 20 divisors (see below), whose sum is σ = 122864904. Its totient is φ = 21137984.

The previous prime is 52845031. The next prime is 52845043. The reversal of 52845040 is 4054825.

52845040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52845043) 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, 330202 + ... + 330361.

Almost surely, 2^52845040 is an apocalyptic number.

It is an amenable number.

52845040 is an abundant number, since it is smaller than the sum of its proper divisors (70019864).

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

52845040 is a wasteful number, since it uses less digits than its factorization.

52845040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660576 (or 660570 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 52845040 is about 7269.4594021839. The cubic root of 52845040 is about 375.2621337567.

Adding to 52845040 its reverse (4054825), we get a palindrome (56899865).

The spelling of 52845040 in words is "fifty-two million, eight hundred forty-five thousand, forty".