1055103005500 has 96 divisors (see below), whose sum is σ = 2335594060800. Its totient is φ = 416349230400.

The previous prime is 1055103005477. The next prime is 1055103005521. The reversal of 1055103005500 is 55003015501.

1055103005500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1055103005500² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13505551 + ... + 13583449.

It is an arithmetic number, because the mean of its divisors is an integer number (24329104800).

Almost surely, 2^{1055103005500} is an apocalyptic number.

1055103005500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055103005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167797030400).

1055103005500 is an abundant number, since it is smaller than the sum of its proper divisors (1280491055300).

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

1055103005500 is a wasteful number, since it uses less digits than its factorization.

1055103005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78284 (or 78272 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 25.

The spelling of 1055103005500 in words is "one trillion, fifty-five billion, one hundred three million, five thousand, five hundred".