54945920 has 32 divisors (see below), whose sum is σ = 131356620. Its totient is φ = 21978112.

The previous prime is 54945901. The next prime is 54945937. The reversal of 54945920 is 2954945.

It can be written as a sum of positive squares in 2 ways, for example, as 49674304 + 5271616 = 7048^2 + 2296^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42287 + ... + 43566.

Almost surely, 2^54945920 is an apocalyptic number.

It is an amenable number.

54945920 is an abundant number, since it is smaller than the sum of its proper divisors (76410700).

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

54945920 is an equidigital number, since it uses as much as digits as its factorization.

54945920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85872 (or 85860 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 54945920 is about 7412.5515175276. The cubic root of 54945920 is about 380.1705605527.

The spelling of 54945920 in words is "fifty-four million, nine hundred forty-five thousand, nine hundred twenty".