30505235 has 4 divisors (see below), whose sum is σ = 36606288. Its totient is φ = 24404184.

The previous prime is 30505231. The next prime is 30505247. The reversal of 30505235 is 53250503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53250503 = 79 ⋅674057.

It is a cyclic number.

It is not a de Polignac number, because 30505235 - 2² = 30505231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30505235.

It is not an unprimeable number, because it can be changed into a prime (30505231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3050519 + ... + 3050528.

It is an arithmetic number, because the mean of its divisors is an integer number (9151572).

Almost surely, 2^30505235 is an apocalyptic number.

30505235 is a deficient number, since it is larger than the sum of its proper divisors (6101053).

30505235 is an equidigital number, since it uses as much as digits as its factorization.

30505235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101052.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 30505235 is about 5523.1544428886. The cubic root of 30505235 is about 312.4578631186.

Adding to 30505235 its reverse (53250503), we get a palindrome (83755738).

The spelling of 30505235 in words is "thirty million, five hundred five thousand, two hundred thirty-five".