85935523 has 2 divisors, whose sum is σ = 85935524. Its totient is φ = 85935522.

The previous prime is 85935511. The next prime is 85935559. The reversal of 85935523 is 32553958.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85935523 is a prime.

It is a super-2 number, since 2×85935523² = 14769828226567058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85935583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42967761 + 42967762.

It is an arithmetic number, because the mean of its divisors is an integer number (42967762).

Almost surely, 2^85935523 is an apocalyptic number.

85935523 is a deficient number, since it is larger than the sum of its proper divisors (1).

85935523 is an equidigital number, since it uses as much as digits as its factorization.

85935523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 40.

The square root of 85935523 is about 9270.1414768061. The cubic root of 85935523 is about 441.2901578905.

The spelling of 85935523 in words is "eighty-five million, nine hundred thirty-five thousand, five hundred twenty-three".