1085307553 has 8 divisors (see below), whose sum is σ = 1206311616. Its totient is φ = 968026800.

The previous prime is 1085307539. The next prime is 1085307581. The reversal of 1085307553 is 3557035801.

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

It is a cyclic number.

It is not a de Polignac number, because 1085307553 - 2⁵ = 1085307521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085305553) 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, 930213 + ... + 931378.

It is an arithmetic number, because the mean of its divisors is an integer number (150788952).

Almost surely, 2^1085307553 is an apocalyptic number.

It is an amenable number.

1085307553 is a deficient number, since it is larger than the sum of its proper divisors (121004063).

1085307553 is a wasteful number, since it uses less digits than its factorization.

1085307553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861655.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 1085307553 is about 32944.0063289212. The cubic root of 1085307553 is about 1027.6635237599.

The spelling of 1085307553 in words is "one billion, eighty-five million, three hundred seven thousand, five hundred fifty-three".