82831250 has 48 divisors (see below), whose sum is σ = 161005320. Its totient is φ = 31920000.

The previous prime is 82831247. The next prime is 82831253. The reversal of 82831250 is 5213828.

It is an interprime number because it is at equal distance from previous prime (82831247) and next prime (82831253).

It can be written as a sum of positive squares in 12 ways, for example, as 21224449 + 61606801 = 4607^2 + 7849^2 .

It is a super-2 number, since 2×82831250² = 13722031953125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (82831253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181022 + ... + 181478.

Almost surely, 2^82831250 is an apocalyptic number.

82831250 is a deficient number, since it is larger than the sum of its proper divisors (78174070).

82831250 is an equidigital number, since it uses as much as digits as its factorization.

82831250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 82831250 is about 9101.1675075234. The cubic root of 82831250 is about 435.9112443131.

The spelling of 82831250 in words is "eighty-two million, eight hundred thirty-one thousand, two hundred fifty".