1255553103104 has 72 divisors (see below), whose sum is σ = 2531373976320. Its totient is φ = 621484351488.

The previous prime is 1255553103089. The next prime is 1255553103109. The reversal of 1255553103104 is 4013013555521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255553103109) 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 7 ways as a sum of consecutive naturals, for example, 24823889 + ... + 24874415.

Almost surely, 2^{1255553103104} 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 1255553103104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1265686988160).

1255553103104 is an abundant number, since it is smaller than the sum of its proper divisors (1275820873216).

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

1255553103104 is an equidigital number, since it uses as much as digits as its factorization.

1255553103104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51515 (or 51501 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 1255553103104 its reverse (4013013555521), we get a palindrome (5268566658625).

The spelling of 1255553103104 in words is "one trillion, two hundred fifty-five billion, five hundred fifty-three million, one hundred three thousand, one hundred four".