54520404891 has 16 divisors (see below), whose sum is σ = 73520952480. Its totient is φ = 35933511680.

The previous prime is 54520404871. The next prime is 54520404919. The reversal of 54520404891 is 19840402545.

It is a cyclic number.

It is not a de Polignac number, because 54520404891 - 2⁵ = 54520404859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54520404871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3688171 + ... + 3702923.

It is an arithmetic number, because the mean of its divisors is an integer number (4595059530).

Almost surely, 2^54520404891 is an apocalyptic number.

54520404891 is a deficient number, since it is larger than the sum of its proper divisors (19000547589).

54520404891 is a wasteful number, since it uses less digits than its factorization.

54520404891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28686.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 54520404891 in words is "fifty-four billion, five hundred twenty million, four hundred four thousand, eight hundred ninety-one".