55475445056016 has 40 divisors (see below), whose sum is σ = 143342459741440. Its totient is φ = 18487828780416.

The previous prime is 55475445055963. The next prime is 55475445056021. The reversal of 55475445056016 is 61065054457455.

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, 124344955 + ... + 124790298.

It is an arithmetic number, because the mean of its divisors is an integer number (3583561493536).

Almost surely, 2^{55475445056016} is an apocalyptic number.

It is an amenable number.

55475445056016 is an abundant number, since it is smaller than the sum of its proper divisors (87867014685424).

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

55475445056016 is a wasteful number, since it uses less digits than its factorization.

55475445056016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249139903 (or 249139897 counting only the distinct ones).

The product of its (nonzero) digits is 50400000, while the sum is 57.

The spelling of 55475445056016 in words is "fifty-five trillion, four hundred seventy-five billion, four hundred forty-five million, fifty-six thousand, sixteen".