52100844440 has 64 divisors (see below), whose sum is σ = 120723264000. Its totient is φ = 20227708800.

The previous prime is 52100844427. The next prime is 52100844443. The reversal of 52100844440 is 4444800125.

It is a super-2 number, since 2×52100844440² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52100844397 and 52100844406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52100844443) 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 15 ways as a sum of consecutive naturals, for example, 46715 + ... + 326165.

It is an arithmetic number, because the mean of its divisors is an integer number (1886301000).

Almost surely, 2^52100844440 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 52100844440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60361632000).

52100844440 is an abundant number, since it is smaller than the sum of its proper divisors (68622419560).

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

52100844440 is a wasteful number, since it uses less digits than its factorization.

52100844440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279600 (or 279596 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

The spelling of 52100844440 in words is "fifty-two billion, one hundred million, eight hundred forty-four thousand, four hundred forty".