55277071 has 2 divisors, whose sum is σ = 55277072. Its totient is φ = 55277070.

The previous prime is 55277069. The next prime is 55277093. The reversal of 55277071 is 17077255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55277071 - 2¹ = 55277069 is a prime.

Together with 55277069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55277021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27638535 + 27638536.

It is an arithmetic number, because the mean of its divisors is an integer number (27638536).

Almost surely, 2^55277071 is an apocalyptic number.

55277071 is a deficient number, since it is larger than the sum of its proper divisors (1).

55277071 is an equidigital number, since it uses as much as digits as its factorization.

55277071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 55277071 is about 7434.8551431753. The cubic root of 55277071 is about 380.9327754124.

The spelling of 55277071 in words is "fifty-five million, two hundred seventy-seven thousand, seventy-one".