52520440303 has 4 divisors (see below), whose sum is σ = 52521664248. Its totient is φ = 52519216360.

The previous prime is 52520440253. The next prime is 52520440331. The reversal of 52520440303 is 30304402525.

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

It is a cyclic number.

It is not a de Polignac number, because 52520440303 - 2³³ = 43930505711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52520440363) 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, 545176 + ... + 634237.

It is an arithmetic number, because the mean of its divisors is an integer number (13130416062).

Almost surely, 2^52520440303 is an apocalyptic number.

52520440303 is a deficient number, since it is larger than the sum of its proper divisors (1223945).

52520440303 is a wasteful number, since it uses less digits than its factorization.

52520440303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223944.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 52520440303 its reverse (30304402525), we get a palindrome (82824842828).

The spelling of 52520440303 in words is "fifty-two billion, five hundred twenty million, four hundred forty thousand, three hundred three".