28503493097 has 2 divisors, whose sum is σ = 28503493098. Its totient is φ = 28503493096.

The previous prime is 28503493091. The next prime is 28503493111. The reversal of 28503493097 is 79039430582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26128782736 + 2374710361 = 161644^2 + 48731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28503493097 is a prime.

It is not a weakly prime, because it can be changed into another prime (28503493091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14251746548 + 14251746549.

It is an arithmetic number, because the mean of its divisors is an integer number (14251746549).

Almost surely, 2^28503493097 is an apocalyptic number.

It is an amenable number.

28503493097 is a deficient number, since it is larger than the sum of its proper divisors (1).

28503493097 is an equidigital number, since it uses as much as digits as its factorization.

28503493097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 28503493097 in words is "twenty-eight billion, five hundred three million, four hundred ninety-three thousand, ninety-seven".