52449525520 has 240 divisors, whose sum is σ = 145924910208. Its totient is φ = 17470494720.

The previous prime is 52449525493. The next prime is 52449525529. The reversal of 52449525520 is 2552594425.

It is not an unprimeable number, because it can be changed into a prime (52449525529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49340509 + ... + 49341571.

Almost surely, 2^52449525520 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 52449525520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72962455104).

52449525520 is an abundant number, since it is smaller than the sum of its proper divisors (93475384688).

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

52449525520 is a wasteful number, since it uses less digits than its factorization.

52449525520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 52449525520 in words is "fifty-two billion, four hundred forty-nine million, five hundred twenty-five thousand, five hundred twenty".