52440252 has 48 divisors (see below), whose sum is σ = 124656000. Its totient is φ = 17156160.

The previous prime is 52440239. The next prime is 52440259. The reversal of 52440252 is 25204425.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52440259) 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 15 ways as a sum of consecutive naturals, for example, 248427 + ... + 248637.

It is an arithmetic number, because the mean of its divisors is an integer number (2597000).

Almost surely, 2^52440252 is an apocalyptic number.

It is an amenable number.

52440252 is an abundant number, since it is smaller than the sum of its proper divisors (72215748).

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

52440252 is a wasteful number, since it uses less digits than its factorization.

52440252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 52440252 is about 7241.5641956693. The cubic root of 52440252 is about 374.3015193628.

Adding to 52440252 its reverse (25204425), we get a palindrome (77644677).

The spelling of 52440252 in words is "fifty-two million, four hundred forty thousand, two hundred fifty-two".