1155553032 has 16 divisors (see below), whose sum is σ = 2888882640. Its totient is φ = 385184336.

The previous prime is 1155553013. The next prime is 1155553033. The reversal of 1155553032 is 2303555511.

It is not an unprimeable number, because it can be changed into a prime (1155553033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24073998 + ... + 24074045.

It is an arithmetic number, because the mean of its divisors is an integer number (180555165).

Almost surely, 2^1155553032 is an apocalyptic number.

1155553032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155553032 is an abundant number, since it is smaller than the sum of its proper divisors (1733329608).

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

1155553032 is a wasteful number, since it uses less digits than its factorization.

1155553032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48148052 (or 48148048 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1155553032 is about 33993.4263056845. The cubic root of 1155553032 is about 1049.3731805300.

The spelling of 1155553032 in words is "one billion, one hundred fifty-five million, five hundred fifty-three thousand, thirty-two".