85272311 has 4 divisors (see below), whose sum is σ = 87255432. Its totient is φ = 83289192.

The previous prime is 85272233. The next prime is 85272329. The reversal of 85272311 is 11327258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85272311 - 2¹⁰ = 85271287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85272331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991496 + ... + 991581.

It is an arithmetic number, because the mean of its divisors is an integer number (21813858).

Almost surely, 2^85272311 is an apocalyptic number.

85272311 is a deficient number, since it is larger than the sum of its proper divisors (1983121).

85272311 is a wasteful number, since it uses less digits than its factorization.

85272311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983120.

The product of its digits is 3360, while the sum is 29.

The square root of 85272311 is about 9234.3007856578. The cubic root of 85272311 is about 440.1519981060.

Adding to 85272311 its reverse (11327258), we get a palindrome (96599569).

The spelling of 85272311 in words is "eighty-five million, two hundred seventy-two thousand, three hundred eleven".