85541311 has 4 divisors (see below), whose sum is σ = 87155352. Its totient is φ = 83927272.

The previous prime is 85541303. The next prime is 85541317. The reversal of 85541311 is 11314558.

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 85541311 - 2³ = 85541303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85541311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85541317) 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, 806941 + ... + 807046.

It is an arithmetic number, because the mean of its divisors is an integer number (21788838).

Almost surely, 2^85541311 is an apocalyptic number.

85541311 is a deficient number, since it is larger than the sum of its proper divisors (1614041).

85541311 is a wasteful number, since it uses less digits than its factorization.

85541311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614040.

The product of its digits is 2400, while the sum is 28.

The square root of 85541311 is about 9248.8545777302. The cubic root of 85541311 is about 440.6143467136.

Adding to 85541311 its reverse (11314558), we get a palindrome (96855869).

The spelling of 85541311 in words is "eighty-five million, five hundred forty-one thousand, three hundred eleven".