20575159247 has 2 divisors, whose sum is σ = 20575159248. Its totient is φ = 20575159246.

The previous prime is 20575159219. The next prime is 20575159291. The reversal of 20575159247 is 74295157502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20575159247 - 2¹⁰ = 20575158223 is a prime.

It is a super-4 number, since 4×20575159247⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20575159207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10287579623 + 10287579624.

It is an arithmetic number, because the mean of its divisors is an integer number (10287579624).

Almost surely, 2^20575159247 is an apocalyptic number.

20575159247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20575159247 is an equidigital number, since it uses as much as digits as its factorization.

20575159247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 20575159247 in words is "twenty billion, five hundred seventy-five million, one hundred fifty-nine thousand, two hundred forty-seven".