82050009 has 8 divisors (see below), whose sum is σ = 111033120. Its totient is φ = 53883456.

The previous prime is 82049983. The next prime is 82050043. The reversal of 82050009 is 90005028.

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

It is not a de Polignac number, because 82050009 - 2⁷ = 82049881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82050809) 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, 203904 + ... + 204305.

It is an arithmetic number, because the mean of its divisors is an integer number (13879140).

Almost surely, 2^82050009 is an apocalyptic number.

It is an amenable number.

82050009 is a deficient number, since it is larger than the sum of its proper divisors (28983111).

82050009 is a wasteful number, since it uses less digits than its factorization.

82050009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408279.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 82050009 is about 9058.1460023561. The cubic root of 82050009 is about 434.5364489925.

The spelling of 82050009 in words is "eighty-two million, fifty thousand, nine".