30807253 has 2 divisors, whose sum is σ = 30807254. Its totient is φ = 30807252.

The previous prime is 30807233. The next prime is 30807269. The reversal of 30807253 is 35270803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16834609 + 13972644 = 4103^2 + 3738^2 .

It is a cyclic number.

It is not a de Polignac number, because 30807253 - 2¹³ = 30799061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30807223) 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 as a sum of consecutive naturals, namely, 15403626 + 15403627.

It is an arithmetic number, because the mean of its divisors is an integer number (15403627).

Almost surely, 2^30807253 is an apocalyptic number.

It is an amenable number.

30807253 is a deficient number, since it is larger than the sum of its proper divisors (1).

30807253 is an equidigital number, since it uses as much as digits as its factorization.

30807253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30807253 is about 5550.4281816811. The cubic root of 30807253 is about 313.4856448518.

The spelling of 30807253 in words is "thirty million, eight hundred seven thousand, two hundred fifty-three".