82251277 has 12 divisors (see below), whose sum is σ = 86606976. Its totient is φ = 78015960.

The previous prime is 82251271. The next prime is 82251311. The reversal of 82251277 is 77215228.

It is not a de Polignac number, because 82251277 - 2¹¹ = 82249229 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 (82251271) 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 11 ways as a sum of consecutive naturals, for example, 413224 + ... + 413422.

It is an arithmetic number, because the mean of its divisors is an integer number (7217248).

Almost surely, 2^82251277 is an apocalyptic number.

It is an amenable number.

82251277 is a deficient number, since it is larger than the sum of its proper divisors (4355699).

82251277 is an equidigital number, since it uses as much as digits as its factorization.

82251277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 297 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 82251277 is about 9069.2489766242. The cubic root of 82251277 is about 434.8914636512.

It can be divided in two parts, 82251 and 277, that added together give a palindrome (82528).

The spelling of 82251277 in words is "eighty-two million, two hundred fifty-one thousand, two hundred seventy-seven".