20525159 has 2 divisors, whose sum is σ = 20525160. Its totient is φ = 20525158.

The previous prime is 20525129. The next prime is 20525189. The reversal of 20525159 is 95152502.

It is a balanced prime because it is at equal distance from previous prime (20525129) and next prime (20525189).

It is a cyclic number.

It is not a de Polignac number, because 20525159 - 2¹² = 20521063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20525129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262579 + 10262580.

It is an arithmetic number, because the mean of its divisors is an integer number (10262580).

Almost surely, 2^20525159 is an apocalyptic number.

20525159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525159 is an equidigital number, since it uses as much as digits as its factorization.

20525159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 20525159 is about 4530.4700639117. The cubic root of 20525159 is about 273.7970996848.

The spelling of 20525159 in words is "twenty million, five hundred twenty-five thousand, one hundred fifty-nine".