55828419 has 4 divisors (see below), whose sum is σ = 74437896. Its totient is φ = 37218944.

The previous prime is 55828417. The next prime is 55828453. The reversal of 55828419 is 91482855.

It is a happy number.

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 55828419 - 2¹ = 55828417 is a prime.

It is a super-2 number, since 2×55828419² = 6233624736079122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55828417) 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 3 ways as a sum of consecutive naturals, for example, 9304734 + ... + 9304739.

It is an arithmetic number, because the mean of its divisors is an integer number (18609474).

Almost surely, 2^55828419 is an apocalyptic number.

55828419 is a deficient number, since it is larger than the sum of its proper divisors (18609477).

55828419 is a wasteful number, since it uses less digits than its factorization.

55828419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18609476.

The product of its digits is 115200, while the sum is 42.

The square root of 55828419 is about 7471.8417408294. The cubic root of 55828419 is about 382.1950955593.

The spelling of 55828419 in words is "fifty-five million, eight hundred twenty-eight thousand, four hundred nineteen".