28553248019 has 2 divisors, whose sum is σ = 28553248020. Its totient is φ = 28553248018.

The previous prime is 28553248007. The next prime is 28553248039. The reversal of 28553248019 is 91084235582.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28553248019 - 2²⁰ = 28552199443 is a prime.

It is a super-2 number, since 2×28553248019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28553248039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276624009 + 14276624010.

It is an arithmetic number, because the mean of its divisors is an integer number (14276624010).

Almost surely, 2^28553248019 is an apocalyptic number.

28553248019 is a deficient number, since it is larger than the sum of its proper divisors (1).

28553248019 is an equidigital number, since it uses as much as digits as its factorization.

28553248019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 28553248019 in words is "twenty-eight billion, five hundred fifty-three million, two hundred forty-eight thousand, nineteen".