5527555861 has 4 divisors (see below), whose sum is σ = 5536099872. Its totient is φ = 5519011852.

The previous prime is 5527555849. The next prime is 5527555919. The reversal of 5527555861 is 1685557255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5527555861 - 2¹⁷ = 5527424789 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5527255861) 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 3 ways as a sum of consecutive naturals, for example, 4271035 + ... + 4272328.

It is an arithmetic number, because the mean of its divisors is an integer number (1384024968).

Almost surely, 2^5527555861 is an apocalyptic number.

It is an amenable number.

5527555861 is a deficient number, since it is larger than the sum of its proper divisors (8544011).

5527555861 is an equidigital number, since it uses as much as digits as its factorization.

5527555861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8544010.

The product of its digits is 2100000, while the sum is 49.

The square root of 5527555861 is about 74347.5343303327. The cubic root of 5527555861 is about 1768.1171910889.

The spelling of 5527555861 in words is "five billion, five hundred twenty-seven million, five hundred fifty-five thousand, eight hundred sixty-one".