5561061055100 has 36 divisors (see below), whose sum is σ = 12069146145000. Its totient is φ = 2224121444160.

The previous prime is 5561061055093. The next prime is 5561061055153. The reversal of 5561061055100 is 15501601655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3048650 + ... + 4518449.

Almost surely, 2^{5561061055100} is an apocalyptic number.

5561061055100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5561061055100 is an abundant number, since it is smaller than the sum of its proper divisors (6508085089900).

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

5561061055100 is a wasteful number, since it uses less digits than its factorization.

5561061055100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574462 (or 7574455 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

Adding to 5561061055100 its reverse (15501601655), we get a palindrome (5576562656755).

The spelling of 5561061055100 in words is "five trillion, five hundred sixty-one billion, sixty-one million, fifty-five thousand, one hundred".