52423209 has 12 divisors (see below), whose sum is σ = 75859056. Its totient is φ = 34885752.

The previous prime is 52423199. The next prime is 52423253. The reversal of 52423209 is 90232425.

It is not a de Polignac number, because 52423209 - 2⁵ = 52423177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52423289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322 + ... + 10244.

It is an arithmetic number, because the mean of its divisors is an integer number (6321588).

Almost surely, 2^52423209 is an apocalyptic number.

It is an amenable number.

52423209 is a deficient number, since it is larger than the sum of its proper divisors (23435847).

52423209 is a wasteful number, since it uses less digits than its factorization.

52423209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516 (or 10513 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 52423209 is about 7240.3873515165. The cubic root of 52423209 is about 374.2609658328.

The spelling of 52423209 in words is "fifty-two million, four hundred twenty-three thousand, two hundred nine".