423555553 has 4 divisors (see below), whose sum is σ = 423698688. Its totient is φ = 423412420.

The previous prime is 423555551. The next prime is 423555607. The reversal of 423555553 is 355555324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423555553 - 2¹ = 423555551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423555551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67033 + ... + 73078.

It is an arithmetic number, because the mean of its divisors is an integer number (105924672).

Almost surely, 2^423555553 is an apocalyptic number.

It is an amenable number.

423555553 is a deficient number, since it is larger than the sum of its proper divisors (143135).

423555553 is a wasteful number, since it uses less digits than its factorization.

423555553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143134.

The product of its digits is 225000, while the sum is 37.

The square root of 423555553 is about 20580.4653251573. The cubic root of 423555553 is about 750.9945638001.

The spelling of 423555553 in words is "four hundred twenty-three million, five hundred fifty-five thousand, five hundred fifty-three".