55478333167 has 2 divisors, whose sum is σ = 55478333168. Its totient is φ = 55478333166.

The previous prime is 55478333123. The next prime is 55478333219. The reversal of 55478333167 is 76133387455.

It is an a-pointer prime, because the next prime (55478333219) can be obtained adding 55478333167 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55478333167 - 2¹⁵ = 55478300399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55478333117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27739166583 + 27739166584.

It is an arithmetic number, because the mean of its divisors is an integer number (27739166584).

Almost surely, 2^55478333167 is an apocalyptic number.

55478333167 is a deficient number, since it is larger than the sum of its proper divisors (1).

55478333167 is an equidigital number, since it uses as much as digits as its factorization.

55478333167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 52.

The spelling of 55478333167 in words is "fifty-five billion, four hundred seventy-eight million, three hundred thirty-three thousand, one hundred sixty-seven".