30485569 has 2 divisors, whose sum is σ = 30485570. Its totient is φ = 30485568.

The previous prime is 30485561. The next prime is 30485579. The reversal of 30485569 is 96558403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25250625 + 5234944 = 5025^2 + 2288^2 .

It is a cyclic number.

It is not a de Polignac number, because 30485569 - 2³ = 30485561 is a prime.

It is a super-2 number, since 2×30485569² = 1858739834507522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30485561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15242784 + 15242785.

It is an arithmetic number, because the mean of its divisors is an integer number (15242785).

Almost surely, 2^30485569 is an apocalyptic number.

It is an amenable number.

30485569 is a deficient number, since it is larger than the sum of its proper divisors (1).

30485569 is an equidigital number, since it uses as much as digits as its factorization.

30485569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 30485569 is about 5521.3738326616. The cubic root of 30485569 is about 312.3907039651.

The spelling of 30485569 in words is "thirty million, four hundred eighty-five thousand, five hundred sixty-nine".