30522225 has 48 divisors (see below), whose sum is σ = 54960768. Its totient is φ = 14883840.

The previous prime is 30522187. The next prime is 30522229. The reversal of 30522225 is 52222503.

It is not a de Polignac number, because 30522225 - 2⁷ = 30522097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30522229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46852 + ... + 47498.

It is an arithmetic number, because the mean of its divisors is an integer number (1145016).

Almost surely, 2^30522225 is an apocalyptic number.

It is an amenable number.

30522225 is a deficient number, since it is larger than the sum of its proper divisors (24438543).

30522225 is a wasteful number, since it uses less digits than its factorization.

30522225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30522225 is about 5524.6922991240. The cubic root of 30522225 is about 312.5158605283.

Adding to 30522225 its reverse (52222503), we get a palindrome (82744728).

The spelling of 30522225 in words is "thirty million, five hundred twenty-two thousand, two hundred twenty-five".