1155552 has 24 divisors (see below), whose sum is σ = 3033576. Its totient is φ = 385152.

The previous prime is 1155529. The next prime is 1155569. The reversal of 1155552 is 2555511.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5923 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (126399).

2^1155552 is an apocalyptic number.

1155552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155552 is an abundant number, since it is smaller than the sum of its proper divisors (1878024).

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

1155552 is a wasteful number, since it uses less digits than its factorization.

1155552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12050 (or 12042 counting only the distinct ones).

The product of its digits is 1250, while the sum is 24.

The square root of 1155552 is about 1074.9660459754. The cubic root of 1155552 is about 104.9372868139.

The spelling of 1155552 in words is "one million, one hundred fifty-five thousand, five hundred fifty-two".