423553199 has 2 divisors, whose sum is σ = 423553200. Its totient is φ = 423553198.

The previous prime is 423553159. The next prime is 423553259. The reversal of 423553199 is 991355324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423553199 - 2¹² = 423549103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423553159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211776599 + 211776600.

It is an arithmetic number, because the mean of its divisors is an integer number (211776600).

Almost surely, 2^423553199 is an apocalyptic number.

423553199 is a deficient number, since it is larger than the sum of its proper divisors (1).

423553199 is an equidigital number, since it uses as much as digits as its factorization.

423553199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 41.

The square root of 423553199 is about 20580.4081349229. The cubic root of 423553199 is about 750.9931725269.

It can be divided in two parts, 42355 and 3199, that added together give a palindrome (45554).

The spelling of 423553199 in words is "four hundred twenty-three million, five hundred fifty-three thousand, one hundred ninety-nine".