20528411 has 2 divisors, whose sum is σ = 20528412. Its totient is φ = 20528410.

The previous prime is 20528399. The next prime is 20528423. The reversal of 20528411 is 11482502.

It is a balanced prime because it is at equal distance from previous prime (20528399) and next prime (20528423).

It is a cyclic number.

It is not a de Polignac number, because 20528411 - 2¹⁰ = 20527387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20528471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10264205 + 10264206.

It is an arithmetic number, because the mean of its divisors is an integer number (10264206).

Almost surely, 2^20528411 is an apocalyptic number.

20528411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20528411 is an equidigital number, since it uses as much as digits as its factorization.

20528411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 20528411 is about 4530.8289528518. The cubic root of 20528411 is about 273.8115590312.

The spelling of 20528411 in words is "twenty million, five hundred twenty-eight thousand, four hundred eleven".