55027780527778 has 8 divisors (see below), whose sum is σ = 82541850671772. Its totient is φ = 27513830303856.

The previous prime is 55027780527749. The next prime is 55027780527779. The reversal of 55027780527778 is 87772508772055.

It can be written as a sum of positive squares in 2 ways, for example, as 54602242184889 + 425538342889 = 7389333^2 + 652333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55027780527779) 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, 28823925 + ... + 30673672.

Almost surely, 2^{55027780527778} is an apocalyptic number.

55027780527778 is a deficient number, since it is larger than the sum of its proper divisors (27514070143994).

55027780527778 is a wasteful number, since it uses less digits than its factorization.

55027780527778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59960036.

The product of its (nonzero) digits is 537824000, while the sum is 70.

The spelling of 55027780527778 in words is "fifty-five trillion, twenty-seven billion, seven hundred eighty million, five hundred twenty-seven thousand, seven hundred seventy-eight".