20425112 has 8 divisors (see below), whose sum is σ = 38297100. Its totient is φ = 10212552.

The previous prime is 20425103. The next prime is 20425117. The reversal of 20425112 is 21152402.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425117) 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 as a sum of consecutive naturals, namely, 1276562 + ... + 1276577.

Almost surely, 2^20425112 is an apocalyptic number.

It is an amenable number.

20425112 is a deficient number, since it is larger than the sum of its proper divisors (17871988).

20425112 is a wasteful number, since it uses less digits than its factorization.

20425112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553145 (or 2553141 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20425112 is about 4519.4150063919. The cubic root of 20425112 is about 273.3515131011.

Adding to 20425112 its reverse (21152402), we get a palindrome (41577514).

The spelling of 20425112 in words is "twenty million, four hundred twenty-five thousand, one hundred twelve".