30525613 has 2 divisors, whose sum is σ = 30525614. Its totient is φ = 30525612.

The previous prime is 30525587. The next prime is 30525637. The reversal of 30525613 is 31652503.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21362884 + 9162729 = 4622^2 + 3027^2 .

It is an emirp because it is prime and its reverse (31652503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30525613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30525643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15262806 + 15262807.

It is an arithmetic number, because the mean of its divisors is an integer number (15262807).

Almost surely, 2^30525613 is an apocalyptic number.

It is an amenable number.

30525613 is a deficient number, since it is larger than the sum of its proper divisors (1).

30525613 is an equidigital number, since it uses as much as digits as its factorization.

30525613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 30525613 is about 5524.9989140270. The cubic root of 30525613 is about 312.5274233001.

The spelling of 30525613 in words is "thirty million, five hundred twenty-five thousand, six hundred thirteen".