52329509 has 4 divisors (see below), whose sum is σ = 52792716. Its totient is φ = 51866304.

The previous prime is 52329499. The next prime is 52329523. The reversal of 52329509 is 90592325.

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 1876900 + 50452609 = 1370^2 + 7103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52329509 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 (52322509) 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, 231434 + ... + 231659.

It is an arithmetic number, because the mean of its divisors is an integer number (13198179).

Almost surely, 2^52329509 is an apocalyptic number.

It is an amenable number.

52329509 is a deficient number, since it is larger than the sum of its proper divisors (463207).

52329509 is a wasteful number, since it uses less digits than its factorization.

52329509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463206.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 52329509 is about 7233.9138092736. The cubic root of 52329509 is about 374.0378511263.

It can be divided in two parts, 5232 and 9509, that added together give a palindrome (14741).

The spelling of 52329509 in words is "fifty-two million, three hundred twenty-nine thousand, five hundred nine".