111255552 has 112 divisors (see below), whose sum is σ = 330281280. Its totient is φ = 37011456.

The previous prime is 111255517. The next prime is 111255569. The reversal of 111255552 is 255552111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220933 + ... + 221435.

It is an arithmetic number, because the mean of its divisors is an integer number (2948940).

Almost surely, 2^111255552 is an apocalyptic number.

111255552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111255552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165140640).

111255552 is an abundant number, since it is smaller than the sum of its proper divisors (219025728).

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

111255552 is an frugal number, since it uses more digits than its factorization.

111255552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 508 counting only the distinct ones).

The product of its digits is 2500, while the sum is 27.

The square root of 111255552 is about 10547.7747416220. The cubic root of 111255552 is about 480.9580863745.

The spelling of 111255552 in words is "one hundred eleven million, two hundred fifty-five thousand, five hundred fifty-two".