28028052555057 has 12 divisors (see below), whose sum is σ = 41426475611664. Its totient is φ = 18250824919320.

The previous prime is 28028052555053. The next prime is 28028052555101. The reversal of 28028052555057 is 75055525082082.

28028052555057 is a `hidden beast` number, since 2 + 8 + 0 + 2 + 80 + 5 + 2 + 5 + 550 + 5 + 7 = 666.

It is not a de Polignac number, because 28028052555057 - 2² = 28028052555053 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28028052554994 and 28028052555012.

It is not an unprimeable number, because it can be changed into a prime (28028052555053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36211953819 + ... + 36211954592.

It is an arithmetic number, because the mean of its divisors is an integer number (3452206300972).

Almost surely, 2^{28028052555057} is an apocalyptic number.

It is an amenable number.

28028052555057 is a deficient number, since it is larger than the sum of its proper divisors (13398423056607).

28028052555057 is a wasteful number, since it uses less digits than its factorization.

28028052555057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72423908460 (or 72423908457 counting only the distinct ones).

The product of its (nonzero) digits is 11200000, while the sum is 54.

The spelling of 28028052555057 in words is "twenty-eight trillion, twenty-eight billion, fifty-two million, five hundred fifty-five thousand, fifty-seven".