30712025 has 12 divisors (see below), whose sum is σ = 38455872. Its totient is φ = 24329040.

The previous prime is 30712021. The next prime is 30712039. The reversal of 30712025 is 52021703.

It is not a de Polignac number, because 30712025 - 2² = 30712021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30711988 and 30712006.

It is not an unprimeable number, because it can be changed into a prime (30712021) 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, 3389 + ... + 8538.

It is an arithmetic number, because the mean of its divisors is an integer number (3204656).

Almost surely, 2^30712025 is an apocalyptic number.

It is an amenable number.

30712025 is a deficient number, since it is larger than the sum of its proper divisors (7743847).

30712025 is a wasteful number, since it uses less digits than its factorization.

30712025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12040 (or 12035 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 30712025 is about 5541.8431049607. The cubic root of 30712025 is about 313.1623073252.

Adding to 30712025 its reverse (52021703), we get a palindrome (82733728).

The spelling of 30712025 in words is "thirty million, seven hundred twelve thousand, twenty-five".