55453997456928 has 192 divisors, whose sum is σ = 185675571486720. Its totient is φ = 15772949565696.

The previous prime is 55453997456839. The next prime is 55453997456929. The reversal of 55453997456928 is 82965479935455.

55453997456928 is a `hidden beast` number, since 5 + 5 + 4 + 53 + 9 + 97 + 456 + 9 + 28 = 666.

It is a super-3 number, since 3×55453997456928³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (55453997456929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19209550 + ... + 21906957.

It is an arithmetic number, because the mean of its divisors is an integer number (967060268160).

Almost surely, 2^{55453997456928} is an apocalyptic number.

It is an amenable number.

55453997456928 is an abundant number, since it is smaller than the sum of its proper divisors (130221574029792).

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

55453997456928 is a wasteful number, since it uses less digits than its factorization.

55453997456928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41116756 (or 41116742 counting only the distinct ones).

The product of its digits is 14696640000, while the sum is 81.

The spelling of 55453997456928 in words is "fifty-five trillion, four hundred fifty-three billion, nine hundred ninety-seven million, four hundred fifty-six thousand, nine hundred twenty-eight".