5561255611 has 16 divisors (see below), whose sum is σ = 5935766400. Its totient is φ = 5210212224.

The previous prime is 5561255561. The next prime is 5561255617. The reversal of 5561255611 is 1165521655.

It is not a de Polignac number, because 5561255611 - 2²³ = 5552867003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561255617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122606 + ... + 1127548.

It is an arithmetic number, because the mean of its divisors is an integer number (370985400).

Almost surely, 2^5561255611 is an apocalyptic number.

5561255611 is a deficient number, since it is larger than the sum of its proper divisors (374510789).

5561255611 is an equidigital number, since it uses as much as digits as its factorization.

5561255611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5223 (or 5189 counting only the distinct ones).

The product of its digits is 45000, while the sum is 37.

The square root of 5561255611 is about 74573.8265814488. The cubic root of 5561255611 is about 1771.7031295399.

The spelling of 5561255611 in words is "five billion, five hundred sixty-one million, two hundred fifty-five thousand, six hundred eleven".