55676789 has 10 divisors (see below), whose sum is σ = 64955190. Its totient is φ = 47720904.

The previous prime is 55676771. The next prime is 55676791. The reversal of 55676789 is 98767655.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 48413764 + 7263025 = 6958^2 + 2695^2 .

It is not a de Polignac number, because 55676789 - 2¹⁶ = 55611253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55676789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55676689) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9194 + ... + 13995.

It is an arithmetic number, because the mean of its divisors is an integer number (6495519).

Almost surely, 2^55676789 is an apocalyptic number.

It is an amenable number.

55676789 is a deficient number, since it is larger than the sum of its proper divisors (9278401).

55676789 is an frugal number, since it uses more digits than its factorization.

55676789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23217 (or 23196 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 55676789 is about 7461.6880797846. The cubic root of 55676789 is about 381.8487678360.

It can be divided in two parts, 55676 and 789, that added together give a palindrome (56465).

The spelling of 55676789 in words is "fifty-five million, six hundred seventy-six thousand, seven hundred eighty-nine".