55378828 has 6 divisors (see below), whose sum is σ = 96912956. Its totient is φ = 27689412.

The previous prime is 55378819. The next prime is 55378853. The reversal of 55378828 is 82887355.

It is an unprimeable number.

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, 6922350 + ... + 6922357.

Almost surely, 2^55378828 is an apocalyptic number.

It is an amenable number.

55378828 is a deficient number, since it is larger than the sum of its proper divisors (41534128).

55378828 is a wasteful number, since it uses less digits than its factorization.

55378828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13844711 (or 13844709 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 55378828 is about 7441.6952369739. The cubic root of 55378828 is about 381.1663792956.

It can be divided in two parts, 5537 and 8828, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 55378828 in words is "fifty-five million, three hundred seventy-eight thousand, eight hundred twenty-eight".