30208825 has 12 divisors (see below), whose sum is σ = 37882620. Its totient is φ = 23893760.

The previous prime is 30208823. The next prime is 30208831. The reversal of 30208825 is 52880203.

It can be written as a sum of positive squares in 6 ways, for example, as 2809 + 30206016 = 53^2 + 5496^2 .

It is not a de Polignac number, because 30208825 - 2¹ = 30208823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30208793 and 30208802.

It is not an unprimeable number, because it can be changed into a prime (30208823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4564 + ... + 9013.

It is an arithmetic number, because the mean of its divisors is an integer number (3156885).

Almost surely, 2^30208825 is an apocalyptic number.

It is an amenable number.

30208825 is a deficient number, since it is larger than the sum of its proper divisors (7673795).

30208825 is a wasteful number, since it uses less digits than its factorization.

30208825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13676 (or 13671 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 30208825 is about 5496.2555435496. The cubic root of 30208825 is about 311.4425484507.

The spelling of 30208825 in words is "thirty million, two hundred eight thousand, eight hundred twenty-five".