54213556885 has 4 divisors (see below), whose sum is σ = 65056268268. Its totient is φ = 43370845504.

The previous prime is 54213556877. The next prime is 54213556909. The reversal of 54213556885 is 58865531245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41541777124 + 12671779761 = 203818^2 + 112569^2 .

It is a cyclic number.

It is not a de Polignac number, because 54213556885 - 2³ = 54213556877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5421355684 + ... + 5421355693.

It is an arithmetic number, because the mean of its divisors is an integer number (16264067067).

Almost surely, 2^54213556885 is an apocalyptic number.

It is an amenable number.

54213556885 is a deficient number, since it is larger than the sum of its proper divisors (10842711383).

54213556885 is a wasteful number, since it uses less digits than its factorization.

54213556885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842711382.

The product of its digits is 5760000, while the sum is 52.

The spelling of 54213556885 in words is "fifty-four billion, two hundred thirteen million, five hundred fifty-six thousand, eight hundred eighty-five".