30825413 has 2 divisors, whose sum is σ = 30825414. Its totient is φ = 30825412.

The previous prime is 30825409. The next prime is 30825449. The reversal of 30825413 is 31452803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30492484 + 332929 = 5522^2 + 577^2 .

It is an emirp because it is prime and its reverse (31452803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30825413 - 2² = 30825409 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 (30825013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15412706 + 15412707.

It is an arithmetic number, because the mean of its divisors is an integer number (15412707).

Almost surely, 2^30825413 is an apocalyptic number.

It is an amenable number.

30825413 is a deficient number, since it is larger than the sum of its proper divisors (1).

30825413 is an equidigital number, since it uses as much as digits as its factorization.

30825413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 30825413 is about 5552.0638504974. The cubic root of 30825413 is about 313.5472297116.

The spelling of 30825413 in words is "thirty million, eight hundred twenty-five thousand, four hundred thirteen".