52850509 has 4 divisors (see below), whose sum is σ = 53254080. Its totient is φ = 52446940.

The previous prime is 52850507. The next prime is 52850519. The reversal of 52850509 is 90505825.

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 52850509 - 2¹ = 52850507 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 (52850507) 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, 201589 + ... + 201850.

It is an arithmetic number, because the mean of its divisors is an integer number (13313520).

Almost surely, 2^52850509 is an apocalyptic number.

It is an amenable number.

52850509 is a deficient number, since it is larger than the sum of its proper divisors (403571).

52850509 is a wasteful number, since it uses less digits than its factorization.

52850509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403570.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 52850509 is about 7269.8355552241. The cubic root of 52850509 is about 375.2750787611.

The spelling of 52850509 in words is "fifty-two million, eight hundred fifty thousand, five hundred nine".