28055252775503 has 4 divisors (see below), whose sum is σ = 28082411782128. Its totient is φ = 28028093768880.

The previous prime is 28055252775497. The next prime is 28055252775541. The reversal of 28055252775503 is 30557725255082.

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

It is a cyclic number.

It is not a de Polignac number, because 28055252775503 - 2⁸ = 28055252775247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28055252775553) 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, 13579501763 + ... + 13579503828.

It is an arithmetic number, because the mean of its divisors is an integer number (7020602945532).

Almost surely, 2^{28055252775503} is an apocalyptic number.

28055252775503 is a deficient number, since it is larger than the sum of its proper divisors (27159006625).

28055252775503 is a wasteful number, since it uses less digits than its factorization.

28055252775503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27159006624.

The product of its (nonzero) digits is 29400000, while the sum is 56.

The spelling of 28055252775503 in words is "twenty-eight trillion, fifty-five billion, two hundred fifty-two million, seven hundred seventy-five thousand, five hundred three".