55278007827555 has 16 divisors (see below), whose sum is σ = 90602003074464. Its totient is φ = 28762540657920.

The previous prime is 55278007827529. The next prime is 55278007827569. The reversal of 55278007827555 is 55572870087255.

It is not a de Polignac number, because 55278007827555 - 2⁹ = 55278007827043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44941469164 + ... + 44941470393.

It is an arithmetic number, because the mean of its divisors is an integer number (5662625192154).

Almost surely, 2^{55278007827555} is an apocalyptic number.

55278007827555 is a deficient number, since it is larger than the sum of its proper divisors (35323995246909).

55278007827555 is a wasteful number, since it uses less digits than its factorization.

55278007827555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89882939606.

The product of its (nonzero) digits is 274400000, while the sum is 66.

The spelling of 55278007827555 in words is "fifty-five trillion, two hundred seventy-eight billion, seven million, eight hundred twenty-seven thousand, five hundred fifty-five".