55034567989 has 4 divisors (see below), whose sum is σ = 55106887500. Its totient is φ = 54962248480.

The previous prime is 55034567981. The next prime is 55034568007. The reversal of 55034567989 is 98976543055.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1236084964 + 53798483025 = 35158^2 + 231945^2 .

It is a cyclic number.

It is not a de Polignac number, because 55034567989 - 2³ = 55034567981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55034567981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36158614 + ... + 36160135.

It is an arithmetic number, because the mean of its divisors is an integer number (13776721875).

Almost surely, 2^55034567989 is an apocalyptic number.

It is an amenable number.

55034567989 is a deficient number, since it is larger than the sum of its proper divisors (72319511).

55034567989 is an equidigital number, since it uses as much as digits as its factorization.

55034567989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72319510.

The product of its (nonzero) digits is 40824000, while the sum is 61.

The spelling of 55034567989 in words is "fifty-five billion, thirty-four million, five hundred sixty-seven thousand, nine hundred eighty-nine".