55082779 has 8 divisors (see below), whose sum is σ = 55732320. Its totient is φ = 54437376.

The previous prime is 55082773. The next prime is 55082791. The reversal of 55082779 is 97728055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55082779 - 2⁵ = 55082747 is a prime.

It is a super-2 number, since 2×55082779² = 6068225084725682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55082773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31377 + ... + 33085.

It is an arithmetic number, because the mean of its divisors is an integer number (6966540).

Almost surely, 2^55082779 is an apocalyptic number.

55082779 is a deficient number, since it is larger than the sum of its proper divisors (649541).

55082779 is a wasteful number, since it uses less digits than its factorization.

55082779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069.

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 55082779 is about 7421.7773477786. Note that the first 3 decimals coincide. The cubic root of 55082779 is about 380.4859411059.

The spelling of 55082779 in words is "fifty-five million, eighty-two thousand, seven hundred seventy-nine".