55881728389075 has 48 divisors (see below), whose sum is σ = 77384517073920. Its totient is φ = 39781896491520.

The previous prime is 55881728389021. The next prime is 55881728389111. The reversal of 55881728389075 is 57098382718855.

It is not a de Polignac number, because 55881728389075 - 2¹¹ = 55881728387027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55881728388992 and 55881728389010.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2817339 + ... + 10940788.

It is an arithmetic number, because the mean of its divisors is an integer number (1612177439040).

Almost surely, 2^{55881728389075} is an apocalyptic number.

55881728389075 is a deficient number, since it is larger than the sum of its proper divisors (21502788684845).

55881728389075 is a wasteful number, since it uses less digits than its factorization.

55881728389075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758676 (or 13758671 counting only the distinct ones).

The product of its (nonzero) digits is 1354752000, while the sum is 76.

The spelling of 55881728389075 in words is "fifty-five trillion, eight hundred eighty-one billion, seven hundred twenty-eight million, three hundred eighty-nine thousand, seventy-five".