1085485253 has 12 divisors (see below), whose sum is σ = 1150317420. Its totient is φ = 1024030656.

The previous prime is 1085485231. The next prime is 1085485259. The reversal of 1085485253 is 3525845801.

It can be written as a sum of positive squares in 2 ways, for example, as 210627169 + 874858084 = 14513^2 + 29578^2 .

It is not a de Polignac number, because 1085485253 - 2¹⁸ = 1085223109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1085485253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085485259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24563 + ... + 52671.

It is an arithmetic number, because the mean of its divisors is an integer number (95859785).

Almost surely, 2^1085485253 is an apocalyptic number.

It is an amenable number.

1085485253 is a deficient number, since it is larger than the sum of its proper divisors (64832167).

1085485253 is an equidigital number, since it uses as much as digits as its factorization.

1085485253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28228 (or 28205 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 1085485253 is about 32946.7032189869. The cubic root of 1085485253 is about 1027.7196079675.

The spelling of 1085485253 in words is "one billion, eighty-five million, four hundred eighty-five thousand, two hundred fifty-three".