85255238 has 16 divisors (see below), whose sum is σ = 137316384. Its totient is φ = 39553920.

The previous prime is 85255231. The next prime is 85255243. The reversal of 85255238 is 83255258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85255231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15245 + ... + 20072.

It is an arithmetic number, because the mean of its divisors is an integer number (8582274).

Almost surely, 2^85255238 is an apocalyptic number.

85255238 is a deficient number, since it is larger than the sum of its proper divisors (52061146).

85255238 is a wasteful number, since it uses less digits than its factorization.

85255238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35407.

The product of its digits is 96000, while the sum is 38.

The square root of 85255238 is about 9233.3763055558. The cubic root of 85255238 is about 440.1226207831.

The spelling of 85255238 in words is "eighty-five million, two hundred fifty-five thousand, two hundred thirty-eight".