1085510585 has 4 divisors (see below), whose sum is σ = 1302612708. Its totient is φ = 868408464.

The previous prime is 1085510581. The next prime is 1085510593. The reversal of 1085510585 is 5850155801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5850155801 = 7 ⋅835736543.

It can be written as a sum of positive squares in 2 ways, for example, as 393189241 + 692321344 = 19829^2 + 26312^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085510585 - 2² = 1085510581 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085510581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108551054 + ... + 108551063.

It is an arithmetic number, because the mean of its divisors is an integer number (325653177).

Almost surely, 2^1085510585 is an apocalyptic number.

It is an amenable number.

1085510585 is a deficient number, since it is larger than the sum of its proper divisors (217102123).

1085510585 is an equidigital number, since it uses as much as digits as its factorization.

1085510585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217102122.

The product of its (nonzero) digits is 40000, while the sum is 38.

The square root of 1085510585 is about 32947.0876558157. The cubic root of 1085510585 is about 1027.7276025458.

The spelling of 1085510585 in words is "one billion, eighty-five million, five hundred ten thousand, five hundred eighty-five".