55628814 has 8 divisors (see below), whose sum is σ = 111257640. Its totient is φ = 18542936.

The previous prime is 55628801. The next prime is 55628819. The reversal of 55628814 is 41882655.

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

55628814 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55628819) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4635729 + ... + 4635740.

It is an arithmetic number, because the mean of its divisors is an integer number (13907205).

Almost surely, 2^55628814 is an apocalyptic number.

55628814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55628814 is a wasteful number, since it uses less digits than its factorization.

55628814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9271474.

The product of its digits is 76800, while the sum is 39.

The square root of 55628814 is about 7458.4726318463. The cubic root of 55628814 is about 381.7390604865.

The spelling of 55628814 in words is "fifty-five million, six hundred twenty-eight thousand, eight hundred fourteen".