423155055 has 32 divisors (see below), whose sum is σ = 699814080. Its totient is φ = 218193920.

The previous prime is 423155017. The next prime is 423155063. The reversal of 423155055 is 550551324.

It is a happy number.

It is not a de Polignac number, because 423155055 - 2¹³ = 423146863 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 66451 + ... + 72539.

It is an arithmetic number, because the mean of its divisors is an integer number (21869190).

Almost surely, 2^423155055 is an apocalyptic number.

423155055 is a deficient number, since it is larger than the sum of its proper divisors (276659025).

423155055 is a wasteful number, since it uses less digits than its factorization.

423155055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 423155055 is about 20570.7329718705. The cubic root of 423155055 is about 750.7577852020.

The spelling of 423155055 in words is "four hundred twenty-three million, one hundred fifty-five thousand, fifty-five".