55268988289 has 4 divisors (see below), whose sum is σ = 55275991380. Its totient is φ = 55261985200.

The previous prime is 55268988277. The next prime is 55268988349. The reversal of 55268988289 is 98288986255.

55268988289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47221463025 + 8047525264 = 217305^2 + 89708^2 .

It is a cyclic number.

It is not a de Polignac number, because 55268988289 - 2²¹ = 55266891137 is a prime.

It is a super-2 number, since 2×55268988289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55268988239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3489694 + ... + 3505495.

It is an arithmetic number, because the mean of its divisors is an integer number (13818997845).

Almost surely, 2^55268988289 is an apocalyptic number.

It is an amenable number.

55268988289 is a deficient number, since it is larger than the sum of its proper divisors (7003091).

55268988289 is an equidigital number, since it uses as much as digits as its factorization.

55268988289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003090.

The product of its digits is 199065600, while the sum is 70.

The spelling of 55268988289 in words is "fifty-five billion, two hundred sixty-eight million, nine hundred eighty-eight thousand, two hundred eighty-nine".