30838253 has 2 divisors, whose sum is σ = 30838254. Its totient is φ = 30838252.

The previous prime is 30838243. The next prime is 30838307. The reversal of 30838253 is 35283803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28536964 + 2301289 = 5342^2 + 1517^2 .

It is a cyclic number.

It is not a de Polignac number, because 30838253 - 2⁶ = 30838189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30838243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15419126 + 15419127.

It is an arithmetic number, because the mean of its divisors is an integer number (15419127).

Almost surely, 2^30838253 is an apocalyptic number.

It is an amenable number.

30838253 is a deficient number, since it is larger than the sum of its proper divisors (1).

30838253 is an equidigital number, since it uses as much as digits as its factorization.

30838253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 30838253 is about 5553.2200568679. The cubic root of 30838253 is about 313.5907585966.

The spelling of 30838253 in words is "thirty million, eight hundred thirty-eight thousand, two hundred fifty-three".