55430916 has 24 divisors (see below), whose sum is σ = 129612000. Its totient is φ = 18437952.

The previous prime is 55430911. The next prime is 55430917. The reversal of 55430916 is 61903455.

It is a happy number.

55430916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55430911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360 + ... + 10616.

It is an arithmetic number, because the mean of its divisors is an integer number (5400500).

Almost surely, 2^55430916 is an apocalyptic number.

It is an amenable number.

55430916 is an abundant number, since it is smaller than the sum of its proper divisors (74181084).

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

55430916 is a wasteful number, since it uses less digits than its factorization.

55430916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9763 (or 9761 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 55430916 is about 7445.1941546208. The cubic root of 55430916 is about 381.2858471713.

The spelling of 55430916 in words is "fifty-five million, four hundred thirty thousand, nine hundred sixteen".