55821272141 has 2 divisors, whose sum is σ = 55821272142. Its totient is φ = 55821272140.

The previous prime is 55821272123. The next prime is 55821272173. The reversal of 55821272141 is 14127212855.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55766822500 + 54449641 = 236150^2 + 7379^2 .

It is a cyclic number.

It is not a de Polignac number, because 55821272141 - 2¹⁸ = 55821009997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55821272095 and 55821272104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55821212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27910636070 + 27910636071.

It is an arithmetic number, because the mean of its divisors is an integer number (27910636071).

Almost surely, 2^55821272141 is an apocalyptic number.

It is an amenable number.

55821272141 is a deficient number, since it is larger than the sum of its proper divisors (1).

55821272141 is an equidigital number, since it uses as much as digits as its factorization.

55821272141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44800, while the sum is 38.

Adding to 55821272141 its reverse (14127212855), we get a palindrome (69948484996).

The spelling of 55821272141 in words is "fifty-five billion, eight hundred twenty-one million, two hundred seventy-two thousand, one hundred forty-one".