54558766785545 has 16 divisors (see below), whose sum is σ = 71422529129280. Its totient is φ = 39679023384000.

The previous prime is 54558766785539. The next prime is 54558766785587.

54558766785545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54558766785545 - 2²⁸ = 54558498350089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54558766785545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52276070 + ... + 53309520.

It is an arithmetic number, because the mean of its divisors is an integer number (4463908070580).

Almost surely, 2^{54558766785545} is an apocalyptic number.

54558766785545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54558766785545 is a deficient number, since it is larger than the sum of its proper divisors (16863762343735).

54558766785545 is a wasteful number, since it uses less digits than its factorization.

54558766785545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993336.

The product of its digits is 28224000000, while the sum is 80.

The spelling of 54558766785545 in words is "fifty-four trillion, five hundred fifty-eight billion, seven hundred sixty-six million, seven hundred eighty-five thousand, five hundred forty-five".