55882779 has 4 divisors (see below), whose sum is σ = 74510376. Its totient is φ = 37255184.

The previous prime is 55882777. The next prime is 55882787. The reversal of 55882779 is 97728855.

55882779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55882779 - 2¹ = 55882777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55882777) 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 in 3 ways as a sum of consecutive naturals, for example, 9313794 + ... + 9313799.

It is an arithmetic number, because the mean of its divisors is an integer number (18627594).

Almost surely, 2^55882779 is an apocalyptic number.

55882779 is a deficient number, since it is larger than the sum of its proper divisors (18627597).

55882779 is a wasteful number, since it uses less digits than its factorization.

55882779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18627596.

The product of its digits is 1411200, while the sum is 51.

The square root of 55882779 is about 7475.4785131121. The cubic root of 55882779 is about 382.3191028074.

The spelling of 55882779 in words is "fifty-five million, eight hundred eighty-two thousand, seven hundred seventy-nine".