55028030025556 has 24 divisors (see below), whose sum is σ = 110362622912640. Its totient is φ = 23517749397792.

The previous prime is 55028030025541. The next prime is 55028030025557. The reversal of 55028030025556 is 65552003082055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55028030025557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2737158175 + ... + 2737178278.

It is an arithmetic number, because the mean of its divisors is an integer number (4598442621360).

Almost surely, 2^{55028030025556} is an apocalyptic number.

It is an amenable number.

55028030025556 is an abundant number, since it is smaller than the sum of its proper divisors (55334592887084).

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

55028030025556 is a wasteful number, since it uses less digits than its factorization.

55028030025556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474336823 (or 5474336821 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 55028030025556 in words is "fifty-five trillion, twenty-eight billion, thirty million, twenty-five thousand, five hundred fifty-six".