55020982617569 has 2 divisors, whose sum is σ = 55020982617570. Its totient is φ = 55020982617568.

The previous prime is 55020982617551. The next prime is 55020982617593. The reversal of 55020982617569 is 96571628902055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47467346019025 + 7553636598544 = 6889655^2 + 2748388^2 .

It is a cyclic number.

It is not a de Polignac number, because 55020982617569 - 2²⁸ = 55020714182113 is a prime.

It is a super-2 number, since 2×55020982617569² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55020982667569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27510491308784 + 27510491308785.

It is an arithmetic number, because the mean of its divisors is an integer number (27510491308785).

Almost surely, 2^{55020982617569} is an apocalyptic number.

It is an amenable number.

55020982617569 is a deficient number, since it is larger than the sum of its proper divisors (1).

55020982617569 is an equidigital number, since it uses as much as digits as its factorization.

55020982617569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648000, while the sum is 65.

The spelling of 55020982617569 in words is "fifty-five trillion, twenty billion, nine hundred eighty-two million, six hundred seventeen thousand, five hundred sixty-nine".