20852411 has 2 divisors, whose sum is σ = 20852412. Its totient is φ = 20852410.

The previous prime is 20852407. The next prime is 20852431. The reversal of 20852411 is 11425802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20852411 - 2² = 20852407 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20852431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10426205 + 10426206.

It is an arithmetic number, because the mean of its divisors is an integer number (10426206).

Almost surely, 2^20852411 is an apocalyptic number.

20852411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20852411 is an equidigital number, since it uses as much as digits as its factorization.

20852411 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 20852411 is about 4566.4440213365. Note that the first 3 decimals coincide. The cubic root of 20852411 is about 275.2445692066.

The spelling of 20852411 in words is "twenty million, eight hundred fifty-two thousand, four hundred eleven".