105501100056 has 64 divisors (see below), whose sum is σ = 288141235200. Its totient is φ = 31924368000.

The previous prime is 105501100031. The next prime is 105501100097. The reversal of 105501100056 is 650001105501.

It is a super-2 number, since 2×105501100056² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 105501099999 and 105501100035.

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, 99976 + ... + 470103.

It is an arithmetic number, because the mean of its divisors is an integer number (4502206800).

Almost surely, 2^105501100056 is an apocalyptic number.

It is an amenable number.

105501100056 is an abundant number, since it is smaller than the sum of its proper divisors (182640135144).

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

105501100056 is a wasteful number, since it uses less digits than its factorization.

105501100056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570800 (or 570796 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 105501100056 its reverse (650001105501), we get a palindrome (755502205557).

Subtracting 105501100056 from its reverse (650001105501), we obtain a palindrome (544500005445).

The spelling of 105501100056 in words is "one hundred five billion, five hundred one million, one hundred thousand, fifty-six".