20527159 has 2 divisors, whose sum is σ = 20527160. Its totient is φ = 20527158.

The previous prime is 20527153. The next prime is 20527187. The reversal of 20527159 is 95172502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20527159 - 2⁵ = 20527127 is a prime.

It is a super-2 number, since 2×20527159² = 842728513222562, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20527159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20527153) 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 as a sum of consecutive naturals, namely, 10263579 + 10263580.

It is an arithmetic number, because the mean of its divisors is an integer number (10263580).

Almost surely, 2^20527159 is an apocalyptic number.

20527159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20527159 is an equidigital number, since it uses as much as digits as its factorization.

20527159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 20527159 is about 4530.6907861826. The cubic root of 20527159 is about 273.8059924526.

The spelling of 20527159 in words is "twenty million, five hundred twenty-seven thousand, one hundred fifty-nine".