20502827 has 2 divisors, whose sum is σ = 20502828. Its totient is φ = 20502826.

The previous prime is 20502817. The next prime is 20502863. The reversal of 20502827 is 72820502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20502827 - 2⁸ = 20502571 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20502796 and 20502805.

It is not a weakly prime, because it can be changed into another prime (20502817) 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, 10251413 + 10251414.

It is an arithmetic number, because the mean of its divisors is an integer number (10251414).

Almost surely, 2^20502827 is an apocalyptic number.

20502827 is a deficient number, since it is larger than the sum of its proper divisors (1).

20502827 is an equidigital number, since it uses as much as digits as its factorization.

20502827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 20502827 is about 4528.0047482307. The cubic root of 20502827 is about 273.6977637798.

The spelling of 20502827 in words is "twenty million, five hundred two thousand, eight hundred twenty-seven".