28003053055553 has 4 divisors (see below), whose sum is σ = 28968675574740. Its totient is φ = 27037430536368.

The previous prime is 28003053055547. The next prime is 28003053055583. The reversal of 28003053055553 is 35555035030082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20355770757169 + 7647282298384 = 4511737^2 + 2765372^2 .

It is a cyclic number.

It is not a de Polignac number, because 28003053055553 - 2⁸ = 28003053055297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28003053055543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482811259550 + ... + 482811259607.

It is an arithmetic number, because the mean of its divisors is an integer number (7242168893685).

Almost surely, 2^{28003053055553} is an apocalyptic number.

It is an amenable number.

28003053055553 is a deficient number, since it is larger than the sum of its proper divisors (965622519187).

28003053055553 is an equidigital number, since it uses as much as digits as its factorization.

28003053055553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965622519186.

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 28003053055553 in words is "twenty-eight trillion, three billion, fifty-three million, fifty-five thousand, five hundred fifty-three".