55906099723819 has 2 divisors, whose sum is σ = 55906099723820. Its totient is φ = 55906099723818.

The previous prime is 55906099723801. The next prime is 55906099723823. The reversal of 55906099723819 is 91832799060955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55906099723819 - 2⁵ = 55906099723787 is a prime.

It is a super-2 number, since 2×55906099723819² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55906099723619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27953049861909 + 27953049861910.

It is an arithmetic number, because the mean of its divisors is an integer number (27953049861910).

Almost surely, 2^{55906099723819} is an apocalyptic number.

55906099723819 is a deficient number, since it is larger than the sum of its proper divisors (1).

55906099723819 is an equidigital number, since it uses as much as digits as its factorization.

55906099723819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 330674400, while the sum is 73.

The spelling of 55906099723819 in words is "fifty-five trillion, nine hundred six billion, ninety-nine million, seven hundred twenty-three thousand, eight hundred nineteen".