85501117 has 16 divisors (see below), whose sum is σ = 95281200. Its totient is φ = 76211712.

The previous prime is 85501103. The next prime is 85501127. The reversal of 85501117 is 71110558.

It can be written as a sum of positive squares in 8 ways, for example, as 2709316 + 82791801 = 1646^2 + 9099^2 .

It is a de Polignac number, because none of the positive numbers 2^k-85501117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85501127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71073 + ... + 72265.

It is an arithmetic number, because the mean of its divisors is an integer number (5955075).

Almost surely, 2^85501117 is an apocalyptic number.

It is an amenable number.

85501117 is a deficient number, since it is larger than the sum of its proper divisors (9780083).

85501117 is a wasteful number, since it uses less digits than its factorization.

85501117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 85501117 is about 9246.6814046987. The cubic root of 85501117 is about 440.5453242049.

The spelling of 85501117 in words is "eighty-five million, five hundred one thousand, one hundred seventeen".