20955833 has 2 divisors, whose sum is σ = 20955834. Its totient is φ = 20955832.

The previous prime is 20955827. The next prime is 20955839. The reversal of 20955833 is 33855902.

It is a balanced prime because it is at equal distance from previous prime (20955827) and next prime (20955839).

It can be written as a sum of positive squares in only one way, i.e., 19114384 + 1841449 = 4372^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 20955833 - 2⁴ = 20955817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20955793 and 20955802.

It is not a weakly prime, because it can be changed into another prime (20955839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10477916 + 10477917.

It is an arithmetic number, because the mean of its divisors is an integer number (10477917).

Almost surely, 2^20955833 is an apocalyptic number.

It is an amenable number.

20955833 is a deficient number, since it is larger than the sum of its proper divisors (1).

20955833 is an equidigital number, since it uses as much as digits as its factorization.

20955833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 20955833 is about 4577.7541436822. The cubic root of 20955833 is about 275.6988637793.

The spelling of 20955833 in words is "twenty million, nine hundred fifty-five thousand, eight hundred thirty-three".