12020625 has 30 divisors (see below), whose sum is σ = 21707114. Its totient is φ = 6408000.

The previous prime is 12020623. The next prime is 12020627. The reversal of 12020625 is 52602021.

12020625 is a `hidden beast` number, since 1 + 20 + 20 + 625 = 666.

It is an interprime number because it is at equal distance from previous prime (12020623) and next prime (12020627).

It can be written as a sum of positive squares in 5 ways, for example, as 8088336 + 3932289 = 2844^2 + 1983^2 .

It is not a de Polignac number, because 12020625 - 2¹ = 12020623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020598 and 12020607.

It is not an unprimeable number, because it can be changed into a prime (12020623) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4557 + ... + 6693.

Almost surely, 2^12020625 is an apocalyptic number.

12020625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12020625 is a deficient number, since it is larger than the sum of its proper divisors (9686489).

12020625 is an equidigital number, since it uses as much as digits as its factorization.

12020625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163 (or 2145 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12020625 is about 3467.0772993979. The cubic root of 12020625 is about 229.0739386093.

Adding to 12020625 its reverse (52602021), we get a palindrome (64622646).

The spelling of 12020625 in words is "twelve million, twenty thousand, six hundred twenty-five".