30855283 has 2 divisors, whose sum is σ = 30855284. Its totient is φ = 30855282.

The previous prime is 30855271. The next prime is 30855287. The reversal of 30855283 is 38255803.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30855283 is a prime.

It is not a weakly prime, because it can be changed into another prime (30855287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15427641 + 15427642.

It is an arithmetic number, because the mean of its divisors is an integer number (15427642).

Almost surely, 2^30855283 is an apocalyptic number.

30855283 is a deficient number, since it is larger than the sum of its proper divisors (1).

30855283 is an equidigital number, since it uses as much as digits as its factorization.

30855283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 30855283 is about 5554.7531898366. The cubic root of 30855283 is about 313.6484733646.

The spelling of 30855283 in words is "thirty million, eight hundred fifty-five thousand, two hundred eighty-three".