1053504553556 has 96 divisors (see below), whose sum is σ = 2279273713920. Its totient is φ = 414901960704.

The previous prime is 1053504553553. The next prime is 1053504553579. The reversal of 1053504553556 is 6553554053501.

It is a super-2 number, since 2×1053504553556² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1053504553556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053504553553) 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, 310858310 + ... + 310861698.

It is an arithmetic number, because the mean of its divisors is an integer number (23742434520).

Almost surely, 2^{1053504553556} 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 1053504553556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1139636856960).

1053504553556 is an abundant number, since it is smaller than the sum of its proper divisors (1225769160364).

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

1053504553556 is a wasteful number, since it uses less digits than its factorization.

1053504553556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993 (or 6991 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 47.

The spelling of 1053504553556 in words is "one trillion, fifty-three billion, five hundred four million, five hundred fifty-three thousand, five hundred fifty-six".