30252839 has 2 divisors, whose sum is σ = 30252840. Its totient is φ = 30252838.

The previous prime is 30252823. The next prime is 30252853. The reversal of 30252839 is 93825203.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30252839 - 2⁴ = 30252823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30252139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15126419 + 15126420.

It is an arithmetic number, because the mean of its divisors is an integer number (15126420).

Almost surely, 2^30252839 is an apocalyptic number.

30252839 is a deficient number, since it is larger than the sum of its proper divisors (1).

30252839 is an equidigital number, since it uses as much as digits as its factorization.

30252839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30252839 is about 5500.2580848538. The cubic root of 30252839 is about 311.5937314280.

The spelling of 30252839 in words is "thirty million, two hundred fifty-two thousand, eight hundred thirty-nine".