85251441 has 16 divisors (see below), whose sum is σ = 127355328. Its totient is φ = 50270400.

The previous prime is 85251431. The next prime is 85251443. The reversal of 85251441 is 14415258.

It is not a de Polignac number, because 85251441 - 2¹⁷ = 85120369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85251399 and 85251408.

It is not an unprimeable number, because it can be changed into a prime (85251443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33690 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (7959708).

Almost surely, 2^85251441 is an apocalyptic number.

It is an amenable number.

85251441 is a deficient number, since it is larger than the sum of its proper divisors (42103887).

85251441 is a wasteful number, since it uses less digits than its factorization.

85251441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69872.

The product of its digits is 6400, while the sum is 30.

The square root of 85251441 is about 9233.1706905050. The cubic root of 85251441 is about 440.1160867939.

Adding to 85251441 its reverse (14415258), we get a palindrome (99666699).

The spelling of 85251441 in words is "eighty-five million, two hundred fifty-one thousand, four hundred forty-one".