52894561440 has 192 divisors, whose sum is σ = 194849335296. Its totient is φ = 11808986112.

The previous prime is 52894561439. The next prime is 52894561441. The reversal of 52894561440 is 4416549825.

It is an interprime number because it is at equal distance from previous prime (52894561439) and next prime (52894561441).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 52894561440.

It is not an unprimeable number, because it can be changed into a prime (52894561441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38572 + ... + 327531.

It is an arithmetic number, because the mean of its divisors is an integer number (1014840288).

Almost surely, 2^52894561440 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 52894561440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97424667648).

52894561440 is an abundant number, since it is smaller than the sum of its proper divisors (141954773856).

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

52894561440 is a wasteful number, since it uses less digits than its factorization.

52894561440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366171 (or 366163 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 52894561440 in words is "fifty-two billion, eight hundred ninety-four million, five hundred sixty-one thousand, four hundred forty".