52320305 has 16 divisors (see below), whose sum is σ = 68103504. Its totient is φ = 38430720.

The previous prime is 52320299. The next prime is 52320311. The reversal of 52320305 is 50302325.

It is an interprime number because it is at equal distance from previous prime (52320299) and next prime (52320311).

It can be written as a sum of positive squares in 8 ways, for example, as 379456 + 51940849 = 616^2 + 7207^2 .

It is not a de Polignac number, because 52320305 - 2²⁰ = 51271729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4022 + ... + 10991.

It is an arithmetic number, because the mean of its divisors is an integer number (4256469).

Almost surely, 2^52320305 is an apocalyptic number.

It is an amenable number.

52320305 is a deficient number, since it is larger than the sum of its proper divisors (15783199).

52320305 is a wasteful number, since it uses less digits than its factorization.

52320305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15076.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 52320305 is about 7233.2776111525. The cubic root of 52320305 is about 374.0159205668.

It can be divided in two parts, 52320 and 305, that added together give a palindrome (52625).

The spelling of 52320305 in words is "fifty-two million, three hundred twenty thousand, three hundred five".