30312325 has 12 divisors (see below), whose sum is σ = 38505348. Its totient is φ = 23657600.

The previous prime is 30312323. The next prime is 30312383. The reversal of 30312325 is 52321303.

It can be written as a sum of positive squares in 6 ways, for example, as 10536516 + 19775809 = 3246^2 + 4447^2 .

It is not a de Polignac number, because 30312325 - 2¹ = 30312323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13762 + ... + 15811.

It is an arithmetic number, because the mean of its divisors is an integer number (3208779).

Almost surely, 2^30312325 is an apocalyptic number.

It is an amenable number.

30312325 is a deficient number, since it is larger than the sum of its proper divisors (8193023).

30312325 is a wasteful number, since it uses less digits than its factorization.

30312325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29624 (or 29619 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 30312325 is about 5505.6629936821. The cubic root of 30312325 is about 311.7978260942.

Adding to 30312325 its reverse (52321303), we get a palindrome (82633628).

It can be divided in two parts, 3031 and 2325, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 30312325 in words is "thirty million, three hundred twelve thousand, three hundred twenty-five".