55512055 has 8 divisors (see below), whose sum is σ = 70533072. Its totient is φ = 41797248.

The previous prime is 55512001. The next prime is 55512071. The reversal of 55512055 is 55021555.

It is a happy number.

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 55512055 - 2⁷ = 55511927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326457 + ... + 326626.

It is an arithmetic number, because the mean of its divisors is an integer number (8816634).

Almost surely, 2^55512055 is an apocalyptic number.

55512055 is a deficient number, since it is larger than the sum of its proper divisors (15021017).

55512055 is a wasteful number, since it uses less digits than its factorization.

55512055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653105.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 55512055 is about 7450.6412475706. The cubic root of 55512055 is about 381.4717967684.

The spelling of 55512055 in words is "fifty-five million, five hundred twelve thousand, fifty-five".