30005252 has 6 divisors (see below), whose sum is σ = 52509198. Its totient is φ = 15002624.

The previous prime is 30005243. The next prime is 30005257. The reversal of 30005252 is 25250003.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 9339136 = 4546^2 + 3056^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30005252.

It is not an unprimeable number, because it can be changed into a prime (30005257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3750653 + ... + 3750660.

It is an arithmetic number, because the mean of its divisors is an integer number (8751533).

Almost surely, 2^30005252 is an apocalyptic number.

It is an amenable number.

30005252 is a deficient number, since it is larger than the sum of its proper divisors (22503946).

30005252 is a wasteful number, since it uses less digits than its factorization.

30005252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501317 (or 7501315 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 30005252 is about 5477.7049938820. The cubic root of 30005252 is about 310.7413819653.

Adding to 30005252 its reverse (25250003), we get a palindrome (55255255).

The spelling of 30005252 in words is "thirty million, five thousand, two hundred fifty-two".