56055000100 has 72 divisors (see below), whose sum is σ = 133191475200. Its totient is φ = 20307753600.

The previous prime is 56055000019. The next prime is 56055000107. The reversal of 56055000100 is 100055065.

It is a super-2 number, since 2×56055000100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (56055000107) 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, 201181 + ... + 390619.

It is an arithmetic number, because the mean of its divisors is an integer number (1849881600).

Almost surely, 2^56055000100 is an apocalyptic number.

56055000100 is a gapful number since it is divisible by the number (50) 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 56055000100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66595737600).

56055000100 is an abundant number, since it is smaller than the sum of its proper divisors (77136475100).

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

56055000100 is a wasteful number, since it uses less digits than its factorization.

56055000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189733 (or 189726 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

Adding to 56055000100 its reverse (100055065), we get a palindrome (56155055165).

The spelling of 56055000100 in words is "fifty-six billion, fifty-five million, one hundred", and thus it is an aban number.