424345555 has 4 divisors (see below), whose sum is σ = 509214672. Its totient is φ = 339476440.

The previous prime is 424345553. The next prime is 424345567. The reversal of 424345555 is 555543424.

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

It is not a de Polignac number, because 424345555 - 2¹ = 424345553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424345553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42434551 + ... + 42434560.

It is an arithmetic number, because the mean of its divisors is an integer number (127303668).

Almost surely, 2^424345555 is an apocalyptic number.

424345555 is a deficient number, since it is larger than the sum of its proper divisors (84869117).

424345555 is an equidigital number, since it uses as much as digits as its factorization.

424345555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84869116.

The product of its digits is 240000, while the sum is 37.

The square root of 424345555 is about 20599.6493902202. The cubic root of 424345555 is about 751.4611839990.

Adding to 424345555 its reverse (555543424), we get a palindrome (979888979).

The spelling of 424345555 in words is "four hundred twenty-four million, three hundred forty-five thousand, five hundred fifty-five".