52509233 has 24 divisors (see below), whose sum is σ = 63776160. Its totient is φ = 43068480.

The previous prime is 52509187. The next prime is 52509241. The reversal of 52509233 is 33290525.

It is not a de Polignac number, because 52509233 - 2¹² = 52505137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52509196 and 52509205.

It is not an unprimeable number, because it can be changed into a prime (52509263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118310 + ... + 118752.

It is an arithmetic number, because the mean of its divisors is an integer number (2657340).

Almost surely, 2^52509233 is an apocalyptic number.

It is an amenable number.

52509233 is a deficient number, since it is larger than the sum of its proper divisors (11266927).

52509233 is a wasteful number, since it uses less digits than its factorization.

52509233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 52509233 is about 7246.3254826153. The cubic root of 52509233 is about 374.4655687913.

Adding to 52509233 its reverse (33290525), we get a palindrome (85799758).

The spelling of 52509233 in words is "fifty-two million, five hundred nine thousand, two hundred thirty-three".