55130647 has 32 divisors (see below), whose sum is σ = 69189120. Its totient is φ = 43182720.

The previous prime is 55130639. The next prime is 55130651. The reversal of 55130647 is 74603155.

55130647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55130647 - 2³ = 55130639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55130627) 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 31 ways as a sum of consecutive naturals, for example, 279753 + ... + 279949.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 2^55130647 is an apocalyptic number.

55130647 is a deficient number, since it is larger than the sum of its proper divisors (14058473).

55130647 is a wasteful number, since it uses less digits than its factorization.

55130647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 55130647 is about 7425.0014814813. The cubic root of 55130647 is about 380.5961257411.

The spelling of 55130647 in words is "fifty-five million, one hundred thirty thousand, six hundred forty-seven".