55051022021239 has 2 divisors, whose sum is σ = 55051022021240. Its totient is φ = 55051022021238.

The previous prime is 55051022021213. The next prime is 55051022021287. The reversal of 55051022021239 is 93212022015055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55051022021239 - 2¹⁵ = 55051021988471 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55051022021198 and 55051022021207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55051022021299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525511010619 + 27525511010620.

It is an arithmetic number, because the mean of its divisors is an integer number (27525511010620).

Almost surely, 2^{55051022021239} is an apocalyptic number.

55051022021239 is a deficient number, since it is larger than the sum of its proper divisors (1).

55051022021239 is an equidigital number, since it uses as much as digits as its factorization.

55051022021239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 55051022021239 in words is "fifty-five trillion, fifty-one billion, twenty-two million, twenty-one thousand, two hundred thirty-nine".