55178679 has 16 divisors (see below), whose sum is σ = 80812800. Its totient is φ = 33333696.

The previous prime is 55178663. The next prime is 55178687. The reversal of 55178679 is 97687155.

It is not a de Polignac number, because 55178679 - 2⁴ = 55178663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55178699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19734 + ... + 22355.

It is an arithmetic number, because the mean of its divisors is an integer number (5050800).

Almost surely, 2^55178679 is an apocalyptic number.

55178679 is a deficient number, since it is larger than the sum of its proper divisors (25634121).

55178679 is a wasteful number, since it uses less digits than its factorization.

55178679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42134.

The product of its digits is 529200, while the sum is 48.

The square root of 55178679 is about 7428.2352547560. The cubic root of 55178679 is about 380.7066237894.

It can be divided in two parts, 5517 and 8679, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 55178679 in words is "fifty-five million, one hundred seventy-eight thousand, six hundred seventy-nine".