20425041 has 80 divisors (see below), whose sum is σ = 40005504. Its totient is φ = 10077696.

The previous prime is 20425021. The next prime is 20425049. The reversal of 20425041 is 14052402.

It is not a de Polignac number, because 20425041 - 2⁶ = 20424977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20425049) 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 79 ways as a sum of consecutive naturals, for example, 125226 + ... + 125388.

Almost surely, 2^20425041 is an apocalyptic number.

20425041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20425041 is a deficient number, since it is larger than the sum of its proper divisors (19580463).

20425041 is a wasteful number, since it uses less digits than its factorization.

20425041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20425041 is about 4519.4071513861. The cubic root of 20425041 is about 273.3511963671.

Adding to 20425041 its reverse (14052402), we get a palindrome (34477443).

The spelling of 20425041 in words is "twenty million, four hundred twenty-five thousand, forty-one".