30052021 has 2 divisors, whose sum is σ = 30052022. Its totient is φ = 30052020.

The previous prime is 30051997. The next prime is 30052027. The reversal of 30052021 is 12025003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 4901796 = 5015^2 + 2214^2 .

It is an emirp because it is prime and its reverse (12025003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30052021 - 2¹¹ = 30049973 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30051992 and 30052010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30052027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15026010 + 15026011.

It is an arithmetic number, because the mean of its divisors is an integer number (15026011).

Almost surely, 2^30052021 is an apocalyptic number.

It is an amenable number.

30052021 is a deficient number, since it is larger than the sum of its proper divisors (1).

30052021 is an equidigital number, since it uses as much as digits as its factorization.

30052021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30052021 is about 5481.9723640310. The cubic root of 30052021 is about 310.9027483749.

Adding to 30052021 its reverse (12025003), we get a palindrome (42077024).

The spelling of 30052021 in words is "thirty million, fifty-two thousand, twenty-one".