55231270099 has 2 divisors, whose sum is σ = 55231270100. Its totient is φ = 55231270098.

The previous prime is 55231270021. The next prime is 55231270117. The reversal of 55231270099 is 99007213255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55231270099 - 2¹⁵ = 55231237331 is a prime.

It is not a weakly prime, because it can be changed into another prime (55231270999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27615635049 + 27615635050.

It is an arithmetic number, because the mean of its divisors is an integer number (27615635050).

Almost surely, 2^55231270099 is an apocalyptic number.

55231270099 is a deficient number, since it is larger than the sum of its proper divisors (1).

55231270099 is an equidigital number, since it uses as much as digits as its factorization.

55231270099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 43.

The spelling of 55231270099 in words is "fifty-five billion, two hundred thirty-one million, two hundred seventy thousand, ninety-nine".