55301255762981 has 2 divisors, whose sum is σ = 55301255762982. Its totient is φ = 55301255762980.

The previous prime is 55301255762959. The next prime is 55301255763041. The reversal of 55301255762981 is 18926755210355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42689105016100 + 12612150746881 = 6533690^2 + 3551359^2 .

It is a cyclic number.

It is not a de Polignac number, because 55301255762981 - 2⁶ = 55301255762917 is a prime.

It is a super-2 number, since 2×55301255762981² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55301255762981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55301255762681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27650627881490 + 27650627881491.

It is an arithmetic number, because the mean of its divisors is an integer number (27650627881491).

Almost surely, 2^{55301255762981} is an apocalyptic number.

It is an amenable number.

55301255762981 is a deficient number, since it is larger than the sum of its proper divisors (1).

55301255762981 is an equidigital number, since it uses as much as digits as its factorization.

55301255762981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680000, while the sum is 59.

The spelling of 55301255762981 in words is "fifty-five trillion, three hundred one billion, two hundred fifty-five million, seven hundred sixty-two thousand, nine hundred eighty-one".