55566983 has 2 divisors, whose sum is σ = 55566984. Its totient is φ = 55566982.

The previous prime is 55566869. The next prime is 55566989. The reversal of 55566983 is 38966555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55566983 - 2¹⁰ = 55565959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55566989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27783491 + 27783492.

It is an arithmetic number, because the mean of its divisors is an integer number (27783492).

Almost surely, 2^55566983 is an apocalyptic number.

55566983 is a deficient number, since it is larger than the sum of its proper divisors (1).

55566983 is an equidigital number, since it uses as much as digits as its factorization.

55566983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972000, while the sum is 47.

The square root of 55566983 is about 7454.3264618609. The cubic root of 55566983 is about 381.5975747077.

The spelling of 55566983 in words is "fifty-five million, five hundred sixty-six thousand, nine hundred eighty-three".