55067717 has 2 divisors, whose sum is σ = 55067718. Its totient is φ = 55067716.

The previous prime is 55067699. The next prime is 55067731. The reversal of 55067717 is 71776055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52504516 + 2563201 = 7246^2 + 1601^2 .

It is a cyclic number.

It is not a de Polignac number, because 55067717 - 2⁶ = 55067653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55067767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27533858 + 27533859.

It is an arithmetic number, because the mean of its divisors is an integer number (27533859).

Almost surely, 2^55067717 is an apocalyptic number.

It is an amenable number.

55067717 is a deficient number, since it is larger than the sum of its proper divisors (1).

55067717 is an equidigital number, since it uses as much as digits as its factorization.

55067717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 55067717 is about 7420.7625618935. The cubic root of 55067717 is about 380.4512575394.

The spelling of 55067717 in words is "fifty-five million, sixty-seven thousand, seven hundred seventeen".