83251211 has 4 divisors (see below), whose sum is σ = 83340624. Its totient is φ = 83161800.

The previous prime is 83251163. The next prime is 83251219. The reversal of 83251211 is 11215238.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11215238 = 2 ⋅5607619.

It is a cyclic number.

It is not a de Polignac number, because 83251211 - 2²² = 79056907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83251219) 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, 43295 + ... + 45176.

It is an arithmetic number, because the mean of its divisors is an integer number (20835156).

Almost surely, 2^83251211 is an apocalyptic number.

83251211 is a deficient number, since it is larger than the sum of its proper divisors (89413).

83251211 is an equidigital number, since it uses as much as digits as its factorization.

83251211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89412.

The product of its digits is 480, while the sum is 23.

The square root of 83251211 is about 9124.2101575972. The cubic root of 83251211 is about 436.6467042781.

Adding to 83251211 its reverse (11215238), we get a palindrome (94466449).

The spelling of 83251211 in words is "eighty-three million, two hundred fifty-one thousand, two hundred eleven".