28055055553 has 16 divisors (see below), whose sum is σ = 32227984000. Its totient is φ = 23923662336.

The previous prime is 28055055541. The next prime is 28055055557. The reversal of 28055055553 is 35555055082.

It is a de Polignac number, because none of the positive numbers 2^k-28055055553 is a prime.

It is a super-2 number, since 2×28055055553² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28055055557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294198 + ... + 1315696.

It is an arithmetic number, because the mean of its divisors is an integer number (2014249000).

Almost surely, 2^28055055553 is an apocalyptic number.

It is an amenable number.

28055055553 is a deficient number, since it is larger than the sum of its proper divisors (4172928447).

28055055553 is a wasteful number, since it uses less digits than its factorization.

28055055553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22456.

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 28055055553 in words is "twenty-eight billion, fifty-five million, fifty-five thousand, five hundred fifty-three".