55555555028 has 24 divisors (see below), whose sum is σ = 97942454400. Its totient is φ = 27572082048.

The previous prime is 55555555009. The next prime is 55555555031. The reversal of 55555555028 is 82055555555.

It is a congruent number.

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, 3916613 + ... + 3930771.

It is an arithmetic number, because the mean of its divisors is an integer number (4080935600).

Almost surely, 2^55555555028 is an apocalyptic number.

It is an amenable number.

55555555028 is a deficient number, since it is larger than the sum of its proper divisors (42386899372).

55555555028 is a wasteful number, since it uses less digits than its factorization.

55555555028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21359 (or 21357 counting only the distinct ones).

The product of its (nonzero) digits is 6250000, while the sum is 50.

The spelling of 55555555028 in words is "fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, twenty-eight".