13558225797 has 8 divisors (see below), whose sum is σ = 20086260480. Its totient is φ = 9038817180.

The previous prime is 13558225777. The next prime is 13558225799. The reversal of 13558225797 is 79752285531.

13558225797 is a `hidden beast` number, since 1 + 3 + 5 + 582 + 2 + 57 + 9 + 7 = 666.

It is not a de Polignac number, because 13558225797 - 2¹⁰ = 13558224773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13558225799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251078229 + ... + 251078282.

It is an arithmetic number, because the mean of its divisors is an integer number (2510782560).

Almost surely, 2^13558225797 is an apocalyptic number.

It is an amenable number.

13558225797 is a deficient number, since it is larger than the sum of its proper divisors (6528034683).

13558225797 is an equidigital number, since it uses as much as digits as its factorization.

13558225797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502156520 (or 502156514 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The spelling of 13558225797 in words is "thirteen billion, five hundred fifty-eight million, two hundred twenty-five thousand, seven hundred ninety-seven".