55693271 has 2 divisors, whose sum is σ = 55693272. Its totient is φ = 55693270.

The previous prime is 55693259. The next prime is 55693273. The reversal of 55693271 is 17239655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55693271 is a prime.

It is a Sophie Germain prime.

Together with 55693273, 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 (55693273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27846635 + 27846636.

It is an arithmetic number, because the mean of its divisors is an integer number (27846636).

Almost surely, 2^55693271 is an apocalyptic number.

55693271 is a deficient number, since it is larger than the sum of its proper divisors (1).

55693271 is an equidigital number, since it uses as much as digits as its factorization.

55693271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 55693271 is about 7462.7924398311. The cubic root of 55693271 is about 381.8864436824.

The spelling of 55693271 in words is "fifty-five million, six hundred ninety-three thousand, two hundred seventy-one".