20041625 has 16 divisors (see below), whose sum is σ = 26103168. Its totient is φ = 15334000.

The previous prime is 20041613. The next prime is 20041627. The reversal of 20041625 is 52614002.

It is a happy number.

It is not a de Polignac number, because 20041625 - 2⁸ = 20041369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20041597 and 20041606.

It is not an unprimeable number, because it can be changed into a prime (20041627) 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, 611 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (1631448).

Almost surely, 2^20041625 is an apocalyptic number.

20041625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20041625 is a deficient number, since it is larger than the sum of its proper divisors (6061543).

20041625 is an equidigital number, since it uses as much as digits as its factorization.

20041625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009 (or 6999 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20041625 is about 4476.7873525554. The cubic root of 20041625 is about 271.6299438905.

Adding to 20041625 its reverse (52614002), we get a palindrome (72655627).

The spelling of 20041625 in words is "twenty million, forty-one thousand, six hundred twenty-five".