55260089 has 2 divisors, whose sum is σ = 55260090. Its totient is φ = 55260088.

The previous prime is 55260071. The next prime is 55260091. The reversal of 55260089 is 98006255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46308025 + 8952064 = 6805^2 + 2992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55260089 is a prime.

Together with 55260091, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3296834 and since 55260089 and 3296834 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55260019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27630044 + 27630045.

It is an arithmetic number, because the mean of its divisors is an integer number (27630045).

Almost surely, 2^55260089 is an apocalyptic number.

It is an amenable number.

55260089 is a deficient number, since it is larger than the sum of its proper divisors (1).

55260089 is an equidigital number, since it uses as much as digits as its factorization.

55260089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 55260089 is about 7433.7130022621. The cubic root of 55260089 is about 380.8937618706.

The spelling of 55260089 in words is "fifty-five million, two hundred sixty thousand, eighty-nine".