5561054189857 has 4 divisors (see below), whose sum is σ = 5576988442900. Its totient is φ = 5545119936816.

The previous prime is 5561054189851. The next prime is 5561054189923. The reversal of 5561054189857 is 7589814501655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1779620032576 + 3781434157281 = 1334024^2 + 1944591^2 .

It is a cyclic number.

It is not a de Polignac number, because 5561054189857 - 2³⁹ = 5011298375969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561054189851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7967125998 + ... + 7967126695.

It is an arithmetic number, because the mean of its divisors is an integer number (1394247110725).

Almost surely, 2^{5561054189857} is an apocalyptic number.

It is an amenable number.

5561054189857 is a deficient number, since it is larger than the sum of its proper divisors (15934253043).

5561054189857 is a wasteful number, since it uses less digits than its factorization.

5561054189857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15934253042.

The product of its (nonzero) digits is 60480000, while the sum is 64.

The spelling of 5561054189857 in words is "five trillion, five hundred sixty-one billion, fifty-four million, one hundred eighty-nine thousand, eight hundred fifty-seven".