1155200556 has 24 divisors (see below), whose sum is σ = 2696042944. Its totient is φ = 384984720.

The previous prime is 1155200537. The next prime is 1155200567. The reversal of 1155200556 is 6550025511.

1155200556 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80271 + ... + 93561.

Almost surely, 2^1155200556 is an apocalyptic number.

It is an amenable number.

1155200556 is an abundant number, since it is smaller than the sum of its proper divisors (1540842388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155200556 is a wasteful number, since it uses less digits than its factorization.

1155200556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20541 (or 20539 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1155200556 is about 33988.2414372971. The cubic root of 1155200556 is about 1049.2664736214.

The spelling of 1155200556 in words is "one billion, one hundred fifty-five million, two hundred thousand, five hundred fifty-six".