1085533556 has 6 divisors (see below), whose sum is σ = 1899683730. Its totient is φ = 542766776.

The previous prime is 1085533543. The next prime is 1085533571. The reversal of 1085533556 is 6553355801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 883040656 + 202492900 = 29716^2 + 14230^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135691691 + ... + 135691698.

It is an arithmetic number, because the mean of its divisors is an integer number (316613955).

Almost surely, 2^1085533556 is an apocalyptic number.

It is an amenable number.

1085533556 is a deficient number, since it is larger than the sum of its proper divisors (814150174).

1085533556 is a wasteful number, since it uses less digits than its factorization.

1085533556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271383393 (or 271383391 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 1085533556 is about 32947.4362583798. The cubic root of 1085533556 is about 1027.7348519037.

The spelling of 1085533556 in words is "one billion, eighty-five million, five hundred thirty-three thousand, five hundred fifty-six".