55605130 has 32 divisors (see below), whose sum is σ = 121118976. Its totient is φ = 17942784.

The previous prime is 55605119. The next prime is 55605131. The reversal of 55605130 is 3150655.

55605130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55605095 and 55605104.

It is not an unprimeable number, because it can be changed into a prime (55605131) 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 15 ways as a sum of consecutive naturals, for example, 22174 + ... + 24553.

It is an arithmetic number, because the mean of its divisors is an integer number (3784968).

Almost surely, 2^55605130 is an apocalyptic number.

55605130 is an abundant number, since it is smaller than the sum of its proper divisors (65513846).

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

55605130 is a wasteful number, since it uses less digits than its factorization.

55605130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46758.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 55605130 is about 7456.8847382805. The cubic root of 55605130 is about 381.6848775871.

Adding to 55605130 its reverse (3150655), we get a palindrome (58755785).

The spelling of 55605130 in words is "fifty-five million, six hundred five thousand, one hundred thirty".