30504223 has 2 divisors, whose sum is σ = 30504224. Its totient is φ = 30504222.

The previous prime is 30504211. The next prime is 30504241. The reversal of 30504223 is 32240503.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30504223 - 2¹³ = 30496031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30504223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30504263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15252111 + 15252112.

It is an arithmetic number, because the mean of its divisors is an integer number (15252112).

Almost surely, 2^30504223 is an apocalyptic number.

30504223 is a deficient number, since it is larger than the sum of its proper divisors (1).

30504223 is an equidigital number, since it uses as much as digits as its factorization.

30504223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30504223 is about 5523.0628278157. The cubic root of 30504223 is about 312.4544078553.

Adding to 30504223 its reverse (32240503), we get a palindrome (62744726).

The spelling of 30504223 in words is "thirty million, five hundred four thousand, two hundred twenty-three".