85599533 has 2 divisors, whose sum is σ = 85599534. Its totient is φ = 85599532.

The previous prime is 85599529. The next prime is 85599551. The reversal of 85599533 is 33599558.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55547209 + 30052324 = 7453^2 + 5482^2 .

It is a cyclic number.

It is not a de Polignac number, because 85599533 - 2² = 85599529 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85599593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42799766 + 42799767.

It is an arithmetic number, because the mean of its divisors is an integer number (42799767).

Almost surely, 2^85599533 is an apocalyptic number.

It is an amenable number.

85599533 is a deficient number, since it is larger than the sum of its proper divisors (1).

85599533 is an equidigital number, since it uses as much as digits as its factorization.

85599533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729000, while the sum is 47.

The square root of 85599533 is about 9252.0015672286. The cubic root of 85599533 is about 440.7142891867.

The spelling of 85599533 in words is "eighty-five million, five hundred ninety-nine thousand, five hundred thirty-three".