55511105000 has 80 divisors (see below), whose sum is σ = 140067492180. Its totient is φ = 20496384000.

The previous prime is 55511104997. The next prime is 55511105011. The reversal of 55511105000 is 50111555.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 1565468356 + 53945636644 = 39566^2 + 232262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 362009 + ... + 492008.

Almost surely, 2^55511105000 is an apocalyptic number.

55511105000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55511105000 is an abundant number, since it is smaller than the sum of its proper divisors (84556387180).

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

55511105000 is a wasteful number, since it uses less digits than its factorization.

55511105000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854056 (or 854037 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 55511105000 its reverse (50111555), we get a palindrome (55561216555).

The spelling of 55511105000 in words is "fifty-five billion, five hundred eleven million, one hundred five thousand".