85224233 has 2 divisors, whose sum is σ = 85224234. Its totient is φ = 85224232.

The previous prime is 85224221. The next prime is 85224257. The reversal of 85224233 is 33242258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83850649 + 1373584 = 9157^2 + 1172^2 .

It is a cyclic number.

It is not a de Polignac number, because 85224233 - 2¹⁰ = 85223209 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85224196 and 85224205.

It is not a weakly prime, because it can be changed into another prime (85224203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42612116 + 42612117.

It is an arithmetic number, because the mean of its divisors is an integer number (42612117).

Almost surely, 2^85224233 is an apocalyptic number.

It is an amenable number.

85224233 is a deficient number, since it is larger than the sum of its proper divisors (1).

85224233 is an equidigital number, since it uses as much as digits as its factorization.

85224233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 85224233 is about 9231.6971895746. The cubic root of 85224233 is about 440.0692607912.

The spelling of 85224233 in words is "eighty-five million, two hundred twenty-four thousand, two hundred thirty-three".