30523061 has 2 divisors, whose sum is σ = 30523062. Its totient is φ = 30523060.

The previous prime is 30523037. The next prime is 30523067. The reversal of 30523061 is 16032503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30316036 + 207025 = 5506^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 30523061 - 2¹⁸ = 30260917 is a prime.

It is a Sophie Germain 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 (30523067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15261530 + 15261531.

It is an arithmetic number, because the mean of its divisors is an integer number (15261531).

Almost surely, 2^30523061 is an apocalyptic number.

It is an amenable number.

30523061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30523061 is an equidigital number, since it uses as much as digits as its factorization.

30523061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 30523061 is about 5524.7679589282. The cubic root of 30523061 is about 312.5187137593.

Adding to 30523061 its reverse (16032503), we get a palindrome (46555564).

The spelling of 30523061 in words is "thirty million, five hundred twenty-three thousand, sixty-one".