52386509 has 4 divisors (see below), whose sum is σ = 59870304. Its totient is φ = 44902716.

The previous prime is 52386493. The next prime is 52386511. The reversal of 52386509 is 90568325.

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 52386509 - 2⁴ = 52386493 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 (52386409) 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, 3741887 + ... + 3741900.

It is an arithmetic number, because the mean of its divisors is an integer number (14967576).

Almost surely, 2^52386509 is an apocalyptic number.

It is an amenable number.

52386509 is a deficient number, since it is larger than the sum of its proper divisors (7483795).

52386509 is an equidigital number, since it uses as much as digits as its factorization.

52386509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7483794.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 52386509 is about 7237.8525130041. The cubic root of 52386509 is about 374.1736089527.

The spelling of 52386509 in words is "fifty-two million, three hundred eighty-six thousand, five hundred nine".