28555800563133 has 10 divisors (see below), whose sum is σ = 42657430470974. Its totient is φ = 19037200375368.

The previous prime is 28555800563107. The next prime is 28555800563149. The reversal of 28555800563133 is 33136500855582.

28555800563133 is a `hidden beast` number, since 2 + 8 + 5 + 5 + 580 + 0 + 56 + 3 + 1 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16226411352804 + 12329389210329 = 4028202^2 + 3511323^2 .

It is not a de Polignac number, because 28555800563133 - 2¹⁶ = 28555800497597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28555800563133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28555800563183) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 176270373766 + ... + 176270373927.

Almost surely, 2^{28555800563133} is an apocalyptic number.

It is an amenable number.

28555800563133 is a deficient number, since it is larger than the sum of its proper divisors (14101629907841).

28555800563133 is an equidigital number, since it uses as much as digits as its factorization.

28555800563133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352540747705 (or 352540747696 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 54.

The spelling of 28555800563133 in words is "twenty-eight trillion, five hundred fifty-five billion, eight hundred million, five hundred sixty-three thousand, one hundred thirty-three".