20207625 has 16 divisors (see below), whose sum is σ = 33626112. Its totient is φ = 10777200.

The previous prime is 20207623. The next prime is 20207651. The reversal of 20207625 is 52670202.

It is not a de Polignac number, because 20207625 - 2¹ = 20207623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20207595 and 20207604.

It is not an unprimeable number, because it can be changed into a prime (20207623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26569 + ... + 27318.

It is an arithmetic number, because the mean of its divisors is an integer number (2101632).

Almost surely, 2^20207625 is an apocalyptic number.

20207625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20207625 is a deficient number, since it is larger than the sum of its proper divisors (13418487).

20207625 is an equidigital number, since it uses as much as digits as its factorization.

20207625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53905 (or 53895 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20207625 is about 4495.2892009302. The cubic root of 20207625 is about 272.3778314980.

Adding to 20207625 its reverse (52670202), we get a palindrome (72877827).

The spelling of 20207625 in words is "twenty million, two hundred seven thousand, six hundred twenty-five".