55130545 has 8 divisors (see below), whose sum is σ = 66994560. Its totient is φ = 43545840.

The previous prime is 55130539. The next prime is 55130557. The reversal of 55130545 is 54503155.

55130545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55130545 - 2⁵ = 55130513 is a prime.

It is an unprimeable number.

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, 69391 + ... + 70180.

It is an arithmetic number, because the mean of its divisors is an integer number (8374320).

Almost surely, 2^55130545 is an apocalyptic number.

It is an amenable number.

55130545 is a deficient number, since it is larger than the sum of its proper divisors (11864015).

55130545 is a wasteful number, since it uses less digits than its factorization.

55130545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139655.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55130545 is about 7424.9946127927. The cubic root of 55130545 is about 380.5958910209.

The spelling of 55130545 in words is "fifty-five million, one hundred thirty thousand, five hundred forty-five".