30055901 has 2 divisors, whose sum is σ = 30055902. Its totient is φ = 30055900.

The previous prime is 30055897. The next prime is 30055913. The reversal of 30055901 is 10955003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20259001 + 9796900 = 4501^2 + 3130^2 .

It is an emirp because it is prime and its reverse (10955003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30055901 - 2² = 30055897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30055931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15027950 + 15027951.

It is an arithmetic number, because the mean of its divisors is an integer number (15027951).

Almost surely, 2^30055901 is an apocalyptic number.

It is an amenable number.

30055901 is a deficient number, since it is larger than the sum of its proper divisors (1).

30055901 is an equidigital number, since it uses as much as digits as its factorization.

30055901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 30055901 is about 5482.3262398365. The cubic root of 30055901 is about 310.9161279604.

The spelling of 30055901 in words is "thirty million, fifty-five thousand, nine hundred one".