85580915 has 16 divisors (see below), whose sum is σ = 119024640. Its totient is φ = 57855840.

The previous prime is 85580903. The next prime is 85580917. The reversal of 85580915 is 51908558.

It is not a de Polignac number, because 85580915 - 2⁸ = 85580659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85580917) 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, 14735 + ... + 19704.

It is an arithmetic number, because the mean of its divisors is an integer number (7439040).

Almost surely, 2^85580915 is an apocalyptic number.

85580915 is a deficient number, since it is larger than the sum of its proper divisors (33443725).

85580915 is a wasteful number, since it uses less digits than its factorization.

85580915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34522.

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 85580915 is about 9250.9953518527. The cubic root of 85580915 is about 440.6823349096.

The spelling of 85580915 in words is "eighty-five million, five hundred eighty thousand, nine hundred fifteen".