20000625 has 20 divisors (see below), whose sum is σ = 33326832. Its totient is φ = 10666000.

The previous prime is 20000623. The next prime is 20000641. The reversal of 20000625 is 52600002.

It is not a de Polignac number, because 20000625 - 2¹ = 20000623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20000621) 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 19 ways as a sum of consecutive naturals, for example, 3459 + ... + 7208.

Almost surely, 2^20000625 is an apocalyptic number.

20000625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20000625 is a deficient number, since it is larger than the sum of its proper divisors (13326207).

20000625 is an equidigital number, since it uses as much as digits as its factorization.

20000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10690 (or 10675 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20000625 is about 4472.2058315780. The cubic root of 20000625 is about 271.4445891484. Note that the first 3 decimals are identical.

Adding to 20000625 its reverse (52600002), we get a palindrome (72600627).

The spelling of 20000625 in words is "twenty million, six hundred twenty-five", and thus it is an aban number.