55122355 has 4 divisors (see below), whose sum is σ = 66146832. Its totient is φ = 44097880.

The previous prime is 55122337. The next prime is 55122367. The reversal of 55122355 is 55322155.

55122355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55122355 - 2⁵ = 55122323 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5512231 + ... + 5512240.

It is an arithmetic number, because the mean of its divisors is an integer number (16536708).

Almost surely, 2^55122355 is an apocalyptic number.

55122355 is a deficient number, since it is larger than the sum of its proper divisors (11024477).

55122355 is a wasteful number, since it uses less digits than its factorization.

55122355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024476.

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

The square root of 55122355 is about 7424.4430767567. The cubic root of 55122355 is about 380.5770434249.

The spelling of 55122355 in words is "fifty-five million, one hundred twenty-two thousand, three hundred fifty-five".