20056087 has 2 divisors, whose sum is σ = 20056088. Its totient is φ = 20056086.

The previous prime is 20056027. The next prime is 20056097. The reversal of 20056087 is 78065002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20056087 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 (20056027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10028043 + 10028044.

It is an arithmetic number, because the mean of its divisors is an integer number (10028044).

Almost surely, 2^20056087 is an apocalyptic number.

20056087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20056087 is an equidigital number, since it uses as much as digits as its factorization.

20056087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20056087 is about 4478.4022820644. The cubic root of 20056087 is about 271.6952640719.

The spelling of 20056087 in words is "twenty million, fifty-six thousand, eighty-seven".