1055800800 has 108 divisors (see below), whose sum is σ = 3723042960. Its totient is φ = 281544960.

The previous prime is 1055800777. The next prime is 1055800819. The reversal of 1055800800 is 80085501.

1055800800 is a `hidden beast` number, since 1 + 0 + 5 + 580 + 0 + 80 + 0 = 666.

It is a super-2 number, since 2×1055800800² = 2229430658561280000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66120 + ... + 80519.

It is an arithmetic number, because the mean of its divisors is an integer number (34472620).

Almost surely, 2^1055800800 is an apocalyptic number.

1055800800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055800800 is an abundant number, since it is smaller than the sum of its proper divisors (2667242160).

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

1055800800 is a wasteful number, since it uses less digits than its factorization.

1055800800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146665 (or 146649 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1055800800 is about 32493.0884958632. The cubic root of 1055800800 is about 1018.2646386326.

The spelling of 1055800800 in words is "one billion, fifty-five million, eight hundred thousand, eight hundred".