55766071 has 2 divisors, whose sum is σ = 55766072. Its totient is φ = 55766070.

The previous prime is 55766059. The next prime is 55766077. The reversal of 55766071 is 17066755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55766071 - 2⁷ = 55765943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55766071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55766077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27883035 + 27883036.

It is an arithmetic number, because the mean of its divisors is an integer number (27883036).

Almost surely, 2^55766071 is an apocalyptic number.

55766071 is a deficient number, since it is larger than the sum of its proper divisors (1).

55766071 is an equidigital number, since it uses as much as digits as its factorization.

55766071 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 37.

The square root of 55766071 is about 7467.6683777468. The cubic root of 55766071 is about 382.0527667576.

The spelling of 55766071 in words is "fifty-five million, seven hundred sixty-six thousand, seventy-one".