55145522099 has 2 divisors, whose sum is σ = 55145522100. Its totient is φ = 55145522098.

The previous prime is 55145522059. The next prime is 55145522167. The reversal of 55145522099 is 99022554155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55145522099 - 2²⁰ = 55144473523 is a prime.

It is not a weakly prime, because it can be changed into another prime (55145522059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27572761049 + 27572761050.

It is an arithmetic number, because the mean of its divisors is an integer number (27572761050).

Almost surely, 2^55145522099 is an apocalyptic number.

55145522099 is a deficient number, since it is larger than the sum of its proper divisors (1).

55145522099 is an equidigital number, since it uses as much as digits as its factorization.

55145522099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 55145522099 in words is "fifty-five billion, one hundred forty-five million, five hundred twenty-two thousand, ninety-nine".