30045225 has 48 divisors (see below), whose sum is σ = 57297920. Its totient is φ = 13608000.

The previous prime is 30045217. The next prime is 30045227. The reversal of 30045225 is 52254003.

It is not a de Polignac number, because 30045225 - 2³ = 30045217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30045227) 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, 79086 + ... + 79464.

Almost surely, 2^30045225 is an apocalyptic number.

30045225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30045225 is a deficient number, since it is larger than the sum of its proper divisors (27252695).

30045225 is a wasteful number, since it uses less digits than its factorization.

30045225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 545 counting only the distinct ones).

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

The square root of 30045225 is about 5481.3524790876. The cubic root of 30045225 is about 310.8793106349.

Adding to 30045225 its reverse (52254003), we get a palindrome (82299228).

The spelling of 30045225 in words is "thirty million, forty-five thousand, two hundred twenty-five".