54809235920 has 40 divisors (see below), whose sum is σ = 128966808096. Its totient is φ = 21659550848.

The previous prime is 54809235919. The next prime is 54809235941. The reversal of 54809235920 is 2953290845.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120562 + ... + 4133841.

Almost surely, 2^54809235920 is an apocalyptic number.

It is an amenable number.

54809235920 is an abundant number, since it is smaller than the sum of its proper divisors (74157572176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54809235920 is a wasteful number, since it uses less digits than its factorization.

54809235920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254499 (or 8254493 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 54809235920 in words is "fifty-four billion, eight hundred nine million, two hundred thirty-five thousand, nine hundred twenty".