54800558781 has 4 divisors (see below), whose sum is σ = 73067411712. Its totient is φ = 36533705852.

The previous prime is 54800558779. The next prime is 54800558797. The reversal of 54800558781 is 18785500845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54800558781 - 2¹ = 54800558779 is a prime.

It is a super-2 number, since 2×54800558781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54800558581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9133426461 + ... + 9133426466.

It is an arithmetic number, because the mean of its divisors is an integer number (18266852928).

Almost surely, 2^54800558781 is an apocalyptic number.

It is an amenable number.

54800558781 is a deficient number, since it is larger than the sum of its proper divisors (18266852931).

54800558781 is a wasteful number, since it uses less digits than its factorization.

54800558781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18266852930.

The product of its (nonzero) digits is 1792000, while the sum is 51.

The spelling of 54800558781 in words is "fifty-four billion, eight hundred million, five hundred fifty-eight thousand, seven hundred eighty-one".