52304309 has 4 divisors (see below), whose sum is σ = 52483116. Its totient is φ = 52125504.

The previous prime is 52304303. The next prime is 52304311. The reversal of 52304309 is 90340325.

52304309 = T₄₄₅ + T₄₄₆ + ... + T₇₃₇.

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 48344209 + 3960100 = 6953^2 + 1990^2 .

It is a cyclic number.

It is not a de Polignac number, because 52304309 - 2⁴ = 52304293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52304303) 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, 88964 + ... + 89549.

It is an arithmetic number, because the mean of its divisors is an integer number (13120779).

Almost surely, 2^52304309 is an apocalyptic number.

It is an amenable number.

52304309 is a deficient number, since it is larger than the sum of its proper divisors (178807).

52304309 is a wasteful number, since it uses less digits than its factorization.

52304309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178806.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 52304309 is about 7232.1718038221. The cubic root of 52304309 is about 373.9778004496.

The spelling of 52304309 in words is "fifty-two million, three hundred four thousand, three hundred nine".