1080551000 has 64 divisors (see below), whose sum is σ = 2533546080. Its totient is φ = 431356800.

The previous prime is 1080550987. The next prime is 1080551077. The reversal of 1080551000 is 1550801.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786314 + ... + 787686.

Almost surely, 2^1080551000 is an apocalyptic number.

1080551000 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 1080551000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266773040).

1080551000 is an abundant number, since it is smaller than the sum of its proper divisors (1452995080).

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

1080551000 is a wasteful number, since it uses less digits than its factorization.

1080551000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1080551000 is about 32871.7355793697. The cubic root of 1080551000 is about 1026.1600192209.

The spelling of 1080551000 in words is "one billion, eighty million, five hundred fifty-one thousand".