55259121089 has 8 divisors (see below), whose sum is σ = 55887477480. Its totient is φ = 54630930816.

The previous prime is 55259121041. The next prime is 55259121097. The reversal of 55259121089 is 98012195255.

It can be written as a sum of positive squares in 4 ways, for example, as 24709324864 + 30549796225 = 157192^2 + 174785^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55259121089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55259121989) 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, 702887 + ... + 777539.

It is an arithmetic number, because the mean of its divisors is an integer number (6985934685).

Almost surely, 2^55259121089 is an apocalyptic number.

It is an amenable number.

55259121089 is a deficient number, since it is larger than the sum of its proper divisors (628356391).

55259121089 is an equidigital number, since it uses as much as digits as its factorization.

55259121089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83059.

The product of its (nonzero) digits is 324000, while the sum is 47.

The spelling of 55259121089 in words is "fifty-five billion, two hundred fifty-nine million, one hundred twenty-one thousand, eighty-nine".