30307825 has 12 divisors (see below), whose sum is σ = 37860300. Its totient is φ = 24066560.

The previous prime is 30307811. The next prime is 30307867. The reversal of 30307825 is 52870303.

It can be written as a sum of positive squares in 6 ways, for example, as 6170256 + 24137569 = 2484^2 + 4913^2 .

It is not a de Polignac number, because 30307825 - 2⁹ = 30307313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30307793 and 30307802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (3155025).

Almost surely, 2^30307825 is an apocalyptic number.

It is an amenable number.

30307825 is a deficient number, since it is larger than the sum of its proper divisors (7552475).

30307825 is a wasteful number, since it uses less digits than its factorization.

30307825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8996 (or 8991 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30307825 is about 5505.2543083858. The cubic root of 30307825 is about 311.7823960707.

The spelling of 30307825 in words is "thirty million, three hundred seven thousand, eight hundred twenty-five".