82550065 has 8 divisors (see below), whose sum is σ = 106680168. Its totient is φ = 60960000.

The previous prime is 82550063. The next prime is 82550077. The reversal of 82550065 is 56005528.

It can be written as a sum of positive squares in 4 ways, for example, as 3837681 + 78712384 = 1959^2 + 8872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82550065 - 2¹ = 82550063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82550063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634936 + ... + 635065.

It is an arithmetic number, because the mean of its divisors is an integer number (13335021).

Almost surely, 2^82550065 is an apocalyptic number.

It is an amenable number.

82550065 is a deficient number, since it is larger than the sum of its proper divisors (24130103).

82550065 is a wasteful number, since it uses less digits than its factorization.

82550065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270019.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 82550065 is about 9085.7066318476. The cubic root of 82550065 is about 435.4174264109.

The spelling of 82550065 in words is "eighty-two million, five hundred fifty thousand, sixty-five".