423506555 has 8 divisors (see below), whose sum is σ = 508630752. Its totient is φ = 338523328.

The previous prime is 423506539. The next prime is 423506569. The reversal of 423506555 is 555605324.

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 423506555 - 2⁴ = 423506539 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28514 + ... + 40743.

It is an arithmetic number, because the mean of its divisors is an integer number (63578844).

Almost surely, 2^423506555 is an apocalyptic number.

423506555 is a deficient number, since it is larger than the sum of its proper divisors (85124197).

423506555 is a wasteful number, since it uses less digits than its factorization.

423506555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70485.

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 423506555 is about 20579.2748900441. The cubic root of 423506555 is about 750.9656036866.

The spelling of 423506555 in words is "four hundred twenty-three million, five hundred six thousand, five hundred fifty-five".