28052805503 has 2 divisors, whose sum is σ = 28052805504. Its totient is φ = 28052805502.

The previous prime is 28052805497. The next prime is 28052805523. The reversal of 28052805503 is 30550825082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28052805503 - 2¹² = 28052801407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28052805523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026402751 + 14026402752.

It is an arithmetic number, because the mean of its divisors is an integer number (14026402752).

Almost surely, 2^28052805503 is an apocalyptic number.

28052805503 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052805503 is an equidigital number, since it uses as much as digits as its factorization.

28052805503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 28052805503 in words is "twenty-eight billion, fifty-two million, eight hundred five thousand, five hundred three".