30045825 has 36 divisors (see below), whose sum is σ = 55144908. Its totient is φ = 15628800.

The previous prime is 30045811. The next prime is 30045871. The reversal of 30045825 is 52854003.

It can be written as a sum of positive squares in 6 ways, for example, as 1498176 + 28547649 = 1224^2 + 5343^2 .

It is not a de Polignac number, because 30045825 - 2⁸ = 30045569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7597 + ... + 10853.

It is an arithmetic number, because the mean of its divisors is an integer number (1531803).

Almost surely, 2^30045825 is an apocalyptic number.

It is an amenable number.

30045825 is a deficient number, since it is larger than the sum of its proper divisors (25099083).

30045825 is a wasteful number, since it uses less digits than its factorization.

30045825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314 (or 3306 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 30045825 is about 5481.4072098322. The cubic root of 30045825 is about 310.8813800302.

Adding to 30045825 its reverse (52854003), we get a palindrome (82899828).

The spelling of 30045825 in words is "thirty million, forty-five thousand, eight hundred twenty-five".