55020982617769 has 27 divisors (see below), whose sum is σ = 64504284282711. Its totient is φ = 46795050076320.

The previous prime is 55020982617737. The next prime is 55020982617781. The reversal of 55020982617769 is 96771628902055.

The square root of 55020982617769 is 7417613.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 664572235369 + 54356410382400 = 815213^2 + 7372680^2 .

It is not a de Polignac number, because 55020982617769 - 2⁵ = 55020982617737 is a prime.

It is a super-2 number, since 2×55020982617769² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55020982617569) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6801947077 + ... + 6801955165.

Almost surely, 2^{55020982617769} is an apocalyptic number.

55020982617769 is the 7417613-rd square number.

55020982617769 is the 3708807-th centered octagonal number.

It is an amenable number.

55020982617769 is a deficient number, since it is larger than the sum of its proper divisors (9483301664942).

55020982617769 is an frugal number, since it uses more digits than its factorization.

55020982617769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16454 (or 8227 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 67.

The spelling of 55020982617769 in words is "fifty-five trillion, twenty billion, nine hundred eighty-two million, six hundred seventeen thousand, seven hundred sixty-nine".