8252605509 has 4 divisors (see below), whose sum is σ = 11003474016. Its totient is φ = 5501737004.

The previous prime is 8252605507. The next prime is 8252605561. The reversal of 8252605509 is 9055062528.

8252605509 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8252605509 - 2¹ = 8252605507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8252605507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375434249 + ... + 1375434254.

It is an arithmetic number, because the mean of its divisors is an integer number (2750868504).

Almost surely, 2^8252605509 is an apocalyptic number.

It is an amenable number.

8252605509 is a deficient number, since it is larger than the sum of its proper divisors (2750868507).

8252605509 is a wasteful number, since it uses less digits than its factorization.

8252605509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750868506.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 8252605509 is about 90843.8523456596. The cubic root of 8252605509 is about 2020.8327048357.

The spelling of 8252605509 in words is "eight billion, two hundred fifty-two million, six hundred five thousand, five hundred nine".