54228020640 has 48 divisors (see below), whose sum is σ = 170818266528. Its totient is φ = 14460805376.

The previous prime is 54228020633. The next prime is 54228020683. The reversal of 54228020640 is 4602082245.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56487042 + ... + 56488001.

It is an arithmetic number, because the mean of its divisors is an integer number (3558713886).

Almost surely, 2^54228020640 is an apocalyptic number.

It is an amenable number.

54228020640 is an abundant number, since it is smaller than the sum of its proper divisors (116590245888).

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

54228020640 is a wasteful number, since it uses less digits than its factorization.

54228020640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112975061 (or 112975053 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 54228020640 in words is "fifty-four billion, two hundred twenty-eight million, twenty thousand, six hundred forty".