1055551200 has 144 divisors (see below), whose sum is σ = 3748260096. Its totient is φ = 255884800.

The previous prime is 1055551183. The next prime is 1055551201. The reversal of 1055551200 is 21555501.

It is a super-2 number, since 2×1055551200² = 2228376671642880000, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055551201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6409 + ... + 46391.

It is an arithmetic number, because the mean of its divisors is an integer number (26029584).

Almost surely, 2^1055551200 is an apocalyptic number.

1055551200 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 1055551200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1874130048).

1055551200 is an abundant number, since it is smaller than the sum of its proper divisors (2692708896).

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

1055551200 is a wasteful number, since it uses less digits than its factorization.

1055551200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40017 (or 40004 counting only the distinct ones).

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

The square root of 1055551200 is about 32489.2474520417. The cubic root of 1055551200 is about 1018.1843902610.

It can be divided in two parts, 1055 and 551200, that added together give a palindrome (552255).

The spelling of 1055551200 in words is "one billion, fifty-five million, five hundred fifty-one thousand, two hundred".