52240312 has 16 divisors (see below), whose sum is σ = 100035360. Its totient is φ = 25564224.

The previous prime is 52240297. The next prime is 52240327. The reversal of 52240312 is 21304225.

It is an interprime number because it is at equal distance from previous prime (52240297) and next prime (52240327).

It is a self number, because there is not a number n which added to its sum of digits gives 52240312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69093 + ... + 69844.

It is an arithmetic number, because the mean of its divisors is an integer number (6252210).

Almost surely, 2^52240312 is an apocalyptic number.

It is an amenable number.

52240312 is a deficient number, since it is larger than the sum of its proper divisors (47795048).

52240312 is a wasteful number, since it uses less digits than its factorization.

52240312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138990 (or 138986 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 52240312 is about 7227.7459833616. The cubic root of 52240312 is about 373.8252112037.

Adding to 52240312 its reverse (21304225), we get a palindrome (73544537).

The spelling of 52240312 in words is "fifty-two million, two hundred forty thousand, three hundred twelve".