52240512 has 32 divisors (see below), whose sum is σ = 138764880. Its totient is φ = 17413376.

The previous prime is 52240511. The next prime is 52240523. The reversal of 52240512 is 21504225.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (52240511) 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, 67638 + ... + 68405.

Almost surely, 2^52240512 is an apocalyptic number.

It is an amenable number.

52240512 is an abundant number, since it is smaller than the sum of its proper divisors (86524368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52240512 is a wasteful number, since it uses less digits than its factorization.

52240512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136060 (or 136048 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52240512 is about 7227.7598189204. The cubic root of 52240512 is about 373.8256882615.

Adding to 52240512 its reverse (21504225), we get a palindrome (73744737).

The spelling of 52240512 in words is "fifty-two million, two hundred forty thousand, five hundred twelve".