55530577999 has 8 divisors (see below), whose sum is σ = 60694731440. Its totient is φ = 50493934656.

The previous prime is 55530577961. The next prime is 55530578009. The reversal of 55530577999 is 99977503555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55530577999 - 2¹⁷ = 55530446927 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 55530577999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55530577939) 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 7 ways as a sum of consecutive naturals, for example, 31876614 + ... + 31878355.

It is an arithmetic number, because the mean of its divisors is an integer number (7586841430).

Almost surely, 2^55530577999 is an apocalyptic number.

55530577999 is a deficient number, since it is larger than the sum of its proper divisors (5164153441).

55530577999 is a wasteful number, since it uses less digits than its factorization.

55530577999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63755049.

The product of its (nonzero) digits is 66976875, while the sum is 64.

The spelling of 55530577999 in words is "fifty-five billion, five hundred thirty million, five hundred seventy-seven thousand, nine hundred ninety-nine".