52440033125440 has 112 divisors (see below), whose sum is σ = 127833991971840. Its totient is φ = 20479036354560.

The previous prime is 52440033125429. The next prime is 52440033125479. The reversal of 52440033125440 is 4452133004425.

It is a self number, because there is not a number n which added to its sum of digits gives 52440033125440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29957580 + ... + 31659700.

It is an arithmetic number, because the mean of its divisors is an integer number (1141374928320).

Almost surely, 2^{52440033125440} 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 52440033125440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63916995985920).

52440033125440 is an abundant number, since it is smaller than the sum of its proper divisors (75393958846400).

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

52440033125440 is a wasteful number, since it uses less digits than its factorization.

52440033125440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704420 (or 1704410 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 52440033125440 its reverse (4452133004425), we get a palindrome (56892166129865).

The spelling of 52440033125440 in words is "fifty-two trillion, four hundred forty billion, thirty-three million, one hundred twenty-five thousand, four hundred forty".