55798279 has 2 divisors, whose sum is σ = 55798280. Its totient is φ = 55798278.

The previous prime is 55798277. The next prime is 55798289. The reversal of 55798279 is 97289755.

55798279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55798279 - 2¹ = 55798277 is a prime.

It is a super-2 number, since 2×55798279² = 6226895878723682, which contains 22 as substring.

Together with 55798277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55798273) 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, 27899139 + 27899140.

It is an arithmetic number, because the mean of its divisors is an integer number (27899140).

Almost surely, 2^55798279 is an apocalyptic number.

55798279 is a deficient number, since it is larger than the sum of its proper divisors (1).

55798279 is an equidigital number, since it uses as much as digits as its factorization.

55798279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 52.

The square root of 55798279 is about 7469.8245628663. The cubic root of 55798279 is about 382.1263048252.

The spelling of 55798279 in words is "fifty-five million, seven hundred ninety-eight thousand, two hundred seventy-nine".