86071553 has 2 divisors, whose sum is σ = 86071554. Its totient is φ = 86071552.

The previous prime is 86071537. The next prime is 86071603. The reversal of 86071553 is 35517068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81504784 + 4566769 = 9028^2 + 2137^2 .

It is a cyclic number.

It is not a de Polignac number, because 86071553 - 2⁴ = 86071537 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 (86070553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43035776 + 43035777.

It is an arithmetic number, because the mean of its divisors is an integer number (43035777).

Almost surely, 2^86071553 is an apocalyptic number.

It is an amenable number.

86071553 is a deficient number, since it is larger than the sum of its proper divisors (1).

86071553 is an equidigital number, since it uses as much as digits as its factorization.

86071553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 86071553 is about 9277.4755725898. The cubic root of 86071553 is about 441.5228790910.

The spelling of 86071553 in words is "eighty-six million, seventy-one thousand, five hundred fifty-three".