20825199253 has 2 divisors, whose sum is σ = 20825199254. Its totient is φ = 20825199252.

The previous prime is 20825199233. The next prime is 20825199259. The reversal of 20825199253 is 35299152802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13401998289 + 7423200964 = 115767^2 + 86158^2 .

It is a cyclic number.

It is not a de Polignac number, because 20825199253 - 2⁹ = 20825198741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20825199259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10412599626 + 10412599627.

It is an arithmetic number, because the mean of its divisors is an integer number (10412599627).

Almost surely, 2^20825199253 is an apocalyptic number.

It is an amenable number.

20825199253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20825199253 is an equidigital number, since it uses as much as digits as its factorization.

20825199253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 20825199253 in words is "twenty billion, eight hundred twenty-five million, one hundred ninety-nine thousand, two hundred fifty-three".