52553240 has 32 divisors (see below), whose sum is σ = 124470000. Its totient is φ = 19914624.

The previous prime is 52553233. The next prime is 52553257. The reversal of 52553240 is 4235525.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33815 + ... + 35334.

Almost surely, 2^52553240 is an apocalyptic number.

It is an amenable number.

52553240 is an abundant number, since it is smaller than the sum of its proper divisors (71916760).

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

52553240 is a wasteful number, since it uses less digits than its factorization.

52553240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69179 (or 69175 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 52553240 is about 7249.3613511812. The cubic root of 52553240 is about 374.5701504295.

Adding to 52553240 its reverse (4235525), we get a palindrome (56788765).

The spelling of 52553240 in words is "fifty-two million, five hundred fifty-three thousand, two hundred forty".