85249906 has 40 divisors (see below), whose sum is σ = 153169884. Its totient is φ = 35562240.

The previous prime is 85249897. The next prime is 85249921. The reversal of 85249906 is 60994258.

It can be written as a sum of positive squares in 2 ways, for example, as 65367225 + 19882681 = 8085^2 + 4459^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 196666 + ... + 197098.

Almost surely, 2^85249906 is an apocalyptic number.

85249906 is a deficient number, since it is larger than the sum of its proper divisors (67919978).

85249906 is an equidigital number, since it uses as much as digits as its factorization.

85249906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 85249906 is about 9233.0875659229. The cubic root of 85249906 is about 440.1134452658.

The spelling of 85249906 in words is "eighty-five million, two hundred forty-nine thousand, nine hundred six".