30551039 has 2 divisors, whose sum is σ = 30551040. Its totient is φ = 30551038.

The previous prime is 30551021. The next prime is 30551047. The reversal of 30551039 is 93015503.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30551039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30550999 and 30551017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30551009) 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, 15275519 + 15275520.

It is an arithmetic number, because the mean of its divisors is an integer number (15275520).

Almost surely, 2^30551039 is an apocalyptic number.

30551039 is a deficient number, since it is larger than the sum of its proper divisors (1).

30551039 is an equidigital number, since it uses as much as digits as its factorization.

30551039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 30551039 is about 5527.2994310061. The cubic root of 30551039 is about 312.6141714026.

The spelling of 30551039 in words is "thirty million, five hundred fifty-one thousand, thirty-nine".