50555500054981 has 2 divisors, whose sum is σ = 50555500054982. Its totient is φ = 50555500054980.

The previous prime is 50555500054937. The next prime is 50555500055023. The reversal of 50555500054981 is 18945000555505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46778828645025 + 3776671409956 = 6839505^2 + 1943366^2 .

It is a cyclic number.

It is not a de Polignac number, because 50555500054981 - 2¹³ = 50555500046789 is a prime.

It is a super-2 number, since 2×50555500054981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50555500054921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25277750027490 + 25277750027491.

It is an arithmetic number, because the mean of its divisors is an integer number (25277750027491).

Almost surely, 2^{50555500054981} is an apocalyptic number.

It is an amenable number.

50555500054981 is a deficient number, since it is larger than the sum of its proper divisors (1).

50555500054981 is an equidigital number, since it uses as much as digits as its factorization.

50555500054981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500000, while the sum is 52.

The spelling of 50555500054981 in words is "fifty trillion, five hundred fifty-five billion, five hundred million, fifty-four thousand, nine hundred eighty-one".