30253823 has 2 divisors, whose sum is σ = 30253824. Its totient is φ = 30253822.

The previous prime is 30253819. The next prime is 30253837. The reversal of 30253823 is 32835203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30253823 - 2² = 30253819 is a prime.

It is a super-2 number, since 2×30253823² = 1830587612230658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30253792 and 30253801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30253423) 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 as a sum of consecutive naturals, namely, 15126911 + 15126912.

It is an arithmetic number, because the mean of its divisors is an integer number (15126912).

Almost surely, 2^30253823 is an apocalyptic number.

30253823 is a deficient number, since it is larger than the sum of its proper divisors (1).

30253823 is an equidigital number, since it uses as much as digits as its factorization.

30253823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30253823 is about 5500.3475344745. The cubic root of 30253823 is about 311.5971096774.

The spelling of 30253823 in words is "thirty million, two hundred fifty-three thousand, eight hundred twenty-three".