1087551800 has 96 divisors (see below), whose sum is σ = 2605547520. Its totient is φ = 421948800.

The previous prime is 1087551797. The next prime is 1087551853. The reversal of 1087551800 is 81557801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1193345 + ... + 1194255.

It is an arithmetic number, because the mean of its divisors is an integer number (27141120).

Almost surely, 2^1087551800 is an apocalyptic number.

1087551800 is a gapful number since it is divisible by the number (10) 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 1087551800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1302773760).

1087551800 is an abundant number, since it is smaller than the sum of its proper divisors (1517995720).

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

1087551800 is a wasteful number, since it uses less digits than its factorization.

1087551800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 35.

The square root of 1087551800 is about 32978.0502759032. The cubic root of 1087551800 is about 1028.3713854428.

The spelling of 1087551800 in words is "one billion, eighty-seven million, five hundred fifty-one thousand, eight hundred".