85455473 has 2 divisors, whose sum is σ = 85455474. Its totient is φ = 85455472.

The previous prime is 85455401. The next prime is 85455493. The reversal of 85455473 is 37455458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83046769 + 2408704 = 9113^2 + 1552^2 .

It is a cyclic number.

It is not a de Polignac number, because 85455473 - 2¹⁰ = 85454449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85455473.

It is not a weakly prime, because it can be changed into another prime (85455493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42727736 + 42727737.

It is an arithmetic number, because the mean of its divisors is an integer number (42727737).

Almost surely, 2^85455473 is an apocalyptic number.

It is an amenable number.

85455473 is a deficient number, since it is larger than the sum of its proper divisors (1).

85455473 is an equidigital number, since it uses as much as digits as its factorization.

85455473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336000, while the sum is 41.

The square root of 85455473 is about 9244.2129464871. The cubic root of 85455473 is about 440.4669165352.

The spelling of 85455473 in words is "eighty-five million, four hundred fifty-five thousand, four hundred seventy-three".