52810240 has 120 divisors (see below), whose sum is σ = 147643452. Its totient is φ = 18063360.

The previous prime is 52810237. The next prime is 52810249. The reversal of 52810240 is 4201825.

It can be written as a sum of positive squares in 2 ways, for example, as 43665664 + 9144576 = 6608^2 + 3024^2 .

It is not an unprimeable number, because it can be changed into a prime (52810249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125230 + ... + 125650.

Almost surely, 2^52810240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52810240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73821726).

52810240 is an abundant number, since it is smaller than the sum of its proper divisors (94833212).

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

52810240 is an equidigital number, since it uses as much as digits as its factorization.

52810240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52810240 is about 7267.0654324837. The cubic root of 52810240 is about 375.1797419819.

The spelling of 52810240 in words is "fifty-two million, eight hundred ten thousand, two hundred forty".