55711220000 has 90 divisors (see below), whose sum is σ = 137140126893. Its totient is φ = 22271136000.

The previous prime is 55711219997. The next prime is 55711220039. The reversal of 55711220000 is 2211755.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 3418507024 + 52292712976 = 58468^2 + 228676^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166900.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 33379166 + ... + 33380834.

Almost surely, 2^55711220000 is an apocalyptic number.

55711220000 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 55711220000

55711220000 is an abundant number, since it is smaller than the sum of its proper divisors (81428906893).

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

55711220000 is an frugal number, since it uses more digits than its factorization.

55711220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

Adding to 55711220000 its reverse (2211755), we get a palindrome (55713431755).

The spelling of 55711220000 in words is "fifty-five billion, seven hundred eleven million, two hundred twenty thousand".