52495057440 has 576 divisors, whose sum is σ = 218775997440. Its totient is φ = 11194951680.

The previous prime is 52495057403. The next prime is 52495057453. The reversal of 52495057440 is 4475059425.

52495057440 is a `hidden beast` number, since 5 + 24 + 9 + 50 + 574 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12829795 + ... + 12833885.

It is an arithmetic number, because the mean of its divisors is an integer number (379819440).

Almost surely, 2^52495057440 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 52495057440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109387998720).

52495057440 is an abundant number, since it is smaller than the sum of its proper divisors (166280940000).

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

52495057440 is a wasteful number, since it uses less digits than its factorization.

52495057440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205 (or 4194 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 52495057440 in words is "fifty-two billion, four hundred ninety-five million, fifty-seven thousand, four hundred forty".