55789829 has 2 divisors, whose sum is σ = 55789830. Its totient is φ = 55789828.

The previous prime is 55789787. The next prime is 55789859. The reversal of 55789829 is 92898755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55100929 + 688900 = 7423^2 + 830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55789829 is a prime.

It is a super-2 number, since 2×55789829² = 6225010039698482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55789859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27894914 + 27894915.

It is an arithmetic number, because the mean of its divisors is an integer number (27894915).

Almost surely, 2^55789829 is an apocalyptic number.

It is an amenable number.

55789829 is a deficient number, since it is larger than the sum of its proper divisors (1).

55789829 is an equidigital number, since it uses as much as digits as its factorization.

55789829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 53.

The square root of 55789829 is about 7469.2589324511. The cubic root of 55789829 is about 382.1070143241.

The spelling of 55789829 in words is "fifty-five million, seven hundred eighty-nine thousand, eight hundred twenty-nine".