86005553 has 2 divisors, whose sum is σ = 86005554. Its totient is φ = 86005552.

The previous prime is 86005541. The next prime is 86005573. The reversal of 86005553 is 35550068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48832144 + 37173409 = 6988^2 + 6097^2 .

It is a cyclic number.

It is not a de Polignac number, because 86005553 - 2⁴ = 86005537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86005573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43002776 + 43002777.

It is an arithmetic number, because the mean of its divisors is an integer number (43002777).

Almost surely, 2^86005553 is an apocalyptic number.

It is an amenable number.

86005553 is a deficient number, since it is larger than the sum of its proper divisors (1).

86005553 is an equidigital number, since it uses as much as digits as its factorization.

86005553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 86005553 is about 9273.9178883576. The cubic root of 86005553 is about 441.4099964155.

The spelling of 86005553 in words is "eighty-six million, five thousand, five hundred fifty-three".