5551010555557 has 4 divisors (see below), whose sum is σ = 5561271204076. Its totient is φ = 5540749907040.

The previous prime is 5551010555513. The next prime is 5551010555569. The reversal of 5551010555557 is 7555550101555.

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 2943331396996 + 2607679158561 = 1715614^2 + 1614831^2 .

It is a cyclic number.

It is not a de Polignac number, because 5551010555557 - 2²⁷ = 5550876337829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5551010555557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551010552557) 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 3 ways as a sum of consecutive naturals, for example, 5130323448 + ... + 5130324529.

It is an arithmetic number, because the mean of its divisors is an integer number (1390317801019).

Almost surely, 2^{5551010555557} is an apocalyptic number.

It is an amenable number.

5551010555557 is a deficient number, since it is larger than the sum of its proper divisors (10260648519).

5551010555557 is a wasteful number, since it uses less digits than its factorization.

5551010555557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10260648518.

The product of its (nonzero) digits is 2734375, while the sum is 49.

The spelling of 5551010555557 in words is "five trillion, five hundred fifty-one billion, ten million, five hundred fifty-five thousand, five hundred fifty-seven".