55709417 has 2 divisors, whose sum is σ = 55709418. Its totient is φ = 55709416.

The previous prime is 55709411. The next prime is 55709419. The reversal of 55709417 is 71490755.

55709417 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 can be written as a sum of positive squares in only one way, i.e., 39677401 + 16032016 = 6299^2 + 4004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55709417 is a prime.

Together with 55709419, 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 (55709411) 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, 27854708 + 27854709.

It is an arithmetic number, because the mean of its divisors is an integer number (27854709).

Almost surely, 2^55709417 is an apocalyptic number.

It is an amenable number.

55709417 is a deficient number, since it is larger than the sum of its proper divisors (1).

55709417 is an equidigital number, since it uses as much as digits as its factorization.

55709417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 55709417 is about 7463.8741280919. The cubic root of 55709417 is about 381.9233442670.

The spelling of 55709417 in words is "fifty-five million, seven hundred nine thousand, four hundred seventeen".