52804993 has 4 divisors (see below), whose sum is σ = 53078788. Its totient is φ = 52531200.

The previous prime is 52804981. The next prime is 52805041. The reversal of 52804993 is 39940825.

It is a happy number.

52804993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14265729 + 38539264 = 3777^2 + 6208^2 .

It is a cyclic number.

It is not a de Polignac number, because 52804993 - 2²¹ = 50707841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52804093) 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, 136608 + ... + 136993.

It is an arithmetic number, because the mean of its divisors is an integer number (13269697).

Almost surely, 2^52804993 is an apocalyptic number.

It is an amenable number.

52804993 is a deficient number, since it is larger than the sum of its proper divisors (273795).

52804993 is a wasteful number, since it uses less digits than its factorization.

52804993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273794.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 52804993 is about 7266.7044112170. The cubic root of 52804993 is about 375.1673161512.

The spelling of 52804993 in words is "fifty-two million, eight hundred four thousand, nine hundred ninety-three".