55549086628223 has 2 divisors, whose sum is σ = 55549086628224. Its totient is φ = 55549086628222.

The previous prime is 55549086628219. The next prime is 55549086628271. The reversal of 55549086628223 is 32282668094555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55549086628223 - 2² = 55549086628219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55549086628223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55549086625223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27774543314111 + 27774543314112.

It is an arithmetic number, because the mean of its divisors is an integer number (27774543314112).

Almost surely, 2^{55549086628223} is an apocalyptic number.

55549086628223 is a deficient number, since it is larger than the sum of its proper divisors (1).

55549086628223 is an equidigital number, since it uses as much as digits as its factorization.

55549086628223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832000, while the sum is 65.

The spelling of 55549086628223 in words is "fifty-five trillion, five hundred forty-nine billion, eighty-six million, six hundred twenty-eight thousand, two hundred twenty-three".