5525138705448 has 128 divisors (see below), whose sum is σ = 15263211801600. Its totient is φ = 1657799801856.

The previous prime is 5525138705447. The next prime is 5525138705491. The reversal of 5525138705448 is 8445078315255.

It is not an unprimeable number, because it can be changed into a prime (5525138705447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82724115 + ... + 82790877.

It is an arithmetic number, because the mean of its divisors is an integer number (119243842200).

Almost surely, 2^{5525138705448} 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 5525138705448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7631605900800).

5525138705448 is an abundant number, since it is smaller than the sum of its proper divisors (9738073096152).

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

5525138705448 is a wasteful number, since it uses less digits than its factorization.

5525138705448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75631 (or 75627 counting only the distinct ones).

The product of its (nonzero) digits is 26880000, while the sum is 57.

The spelling of 5525138705448 in words is "five trillion, five hundred twenty-five billion, one hundred thirty-eight million, seven hundred five thousand, four hundred forty-eight".