55076009 has 2 divisors, whose sum is σ = 55076010. Its totient is φ = 55076008.

The previous prime is 55075987. The next prime is 55076011. The reversal of 55076009 is 90067055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 13344409 = 6460^2 + 3653^2 .

It is a cyclic number.

It is not a de Polignac number, because 55076009 - 2⁸ = 55075753 is a prime.

Together with 55076011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55076029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27538004 + 27538005.

It is an arithmetic number, because the mean of its divisors is an integer number (27538005).

Almost surely, 2^55076009 is an apocalyptic number.

It is an amenable number.

55076009 is a deficient number, since it is larger than the sum of its proper divisors (1).

55076009 is an equidigital number, since it uses as much as digits as its factorization.

55076009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 55076009 is about 7421.3212435523. The cubic root of 55076009 is about 380.4703524748.

The spelling of 55076009 in words is "fifty-five million, seventy-six thousand, nine".