82187250 has 32 divisors (see below), whose sum is σ = 205141248. Its totient is φ = 21916400.

The previous prime is 82187221. The next prime is 82187251. The reversal of 82187250 is 5278128.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82187251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54042 + ... + 55541.

It is an arithmetic number, because the mean of its divisors is an integer number (6410664).

Almost surely, 2^82187250 is an apocalyptic number.

82187250 is an abundant number, since it is smaller than the sum of its proper divisors (122953998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82187250 is a wasteful number, since it uses less digits than its factorization.

82187250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109603 (or 109593 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 82187250 is about 9065.7183940381. The cubic root of 82187250 is about 434.7785899266.

The spelling of 82187250 in words is "eighty-two million, one hundred eighty-seven thousand, two hundred fifty".