55065155 has 8 divisors (see below), whose sum is σ = 67615152. Its totient is φ = 43027488.

The previous prime is 55065137. The next prime is 55065169. The reversal of 55065155 is 55156055.

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

It is a cyclic number.

It is not a de Polignac number, because 55065155 - 2⁸ = 55064899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127844 + ... + 128273.

It is an arithmetic number, because the mean of its divisors is an integer number (8451894).

Almost surely, 2^55065155 is an apocalyptic number.

55065155 is a deficient number, since it is larger than the sum of its proper divisors (12549997).

55065155 is a wasteful number, since it uses less digits than its factorization.

55065155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256165.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 55065155 is about 7420.5899361169. The cubic root of 55065155 is about 380.4453573418.

The spelling of 55065155 in words is "fifty-five million, sixty-five thousand, one hundred fifty-five".