55500499999 has 4 divisors (see below), whose sum is σ = 63429142864. Its totient is φ = 47571857136.

The previous prime is 55500499969. The next prime is 55500500017. The reversal of 55500499999 is 99999400555.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55500499999 - 2⁹ = 55500499487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55500499999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500499919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3964321422 + ... + 3964321435.

It is an arithmetic number, because the mean of its divisors is an integer number (15857285716).

Almost surely, 2^55500499999 is an apocalyptic number.

55500499999 is a deficient number, since it is larger than the sum of its proper divisors (7928642865).

55500499999 is an equidigital number, since it uses as much as digits as its factorization.

55500499999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928642864.

The product of its (nonzero) digits is 29524500, while the sum is 64.

The spelling of 55500499999 in words is "fifty-five billion, five hundred million, four hundred ninety-nine thousand, nine hundred ninety-nine".