55277750558505 has 16 divisors (see below), whose sum is σ = 88449906003264. Its totient is φ = 29479631928000.

The previous prime is 55277750558501. The next prime is 55277750558593. The reversal of 55277750558505 is 50585505777255.

It is not a de Polignac number, because 55277750558505 - 2² = 55277750558501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55277750558501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114440746 + ... + 114922755.

It is an arithmetic number, because the mean of its divisors is an integer number (5528119125204).

Almost surely, 2^{55277750558505} is an apocalyptic number.

It is an amenable number.

55277750558505 is a deficient number, since it is larger than the sum of its proper divisors (33172155444759).

55277750558505 is a wasteful number, since it uses less digits than its factorization.

55277750558505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229379576.

The product of its (nonzero) digits is 428750000, while the sum is 66.

The spelling of 55277750558505 in words is "fifty-five trillion, two hundred seventy-seven billion, seven hundred fifty million, five hundred fifty-eight thousand, five hundred five".