55075511 has 2 divisors, whose sum is σ = 55075512. Its totient is φ = 55075510.

The previous prime is 55075483. The next prime is 55075513. The reversal of 55075511 is 11557055.

55075511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55075511 - 2¹⁴ = 55059127 is a prime.

It is a super-2 number, since 2×55075511² = 6066623823822242, which contains 22 as substring.

Together with 55075513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55075513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27537755 + 27537756.

It is an arithmetic number, because the mean of its divisors is an integer number (27537756).

Almost surely, 2^55075511 is an apocalyptic number.

55075511 is a deficient number, since it is larger than the sum of its proper divisors (1).

55075511 is an equidigital number, since it uses as much as digits as its factorization.

55075511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4375, while the sum is 29.

The square root of 55075511 is about 7421.2876914994. The cubic root of 55075511 is about 380.4692057274.

The spelling of 55075511 in words is "fifty-five million, seventy-five thousand, five hundred eleven".