20425036 has 12 divisors (see below), whose sum is σ = 36710128. Its totient is φ = 9936432.

The previous prime is 20425021. The next prime is 20425049. The reversal of 20425036 is 63052402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20424998 and 20425016.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 68856 + ... + 69151.

Almost surely, 2^20425036 is an apocalyptic number.

It is an amenable number.

20425036 is a deficient number, since it is larger than the sum of its proper divisors (16285092).

20425036 is a wasteful number, since it uses less digits than its factorization.

20425036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138048 (or 138046 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20425036 is about 4519.4065982162. The cubic root of 20425036 is about 273.3511740619.

Adding to 20425036 its reverse (63052402), we get a palindrome (83477438).

The spelling of 20425036 in words is "twenty million, four hundred twenty-five thousand, thirty-six".