20425606 has 8 divisors (see below), whose sum is σ = 31140864. Its totient is φ = 10045320.

The previous prime is 20425597. The next prime is 20425607. The reversal of 20425606 is 60652402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83590 + ... + 83833.

It is an arithmetic number, because the mean of its divisors is an integer number (3892608).

Almost surely, 2^20425606 is an apocalyptic number.

20425606 is a deficient number, since it is larger than the sum of its proper divisors (10715258).

20425606 is a wasteful number, since it uses less digits than its factorization.

20425606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167486.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20425606 is about 4519.4696591525. The cubic root of 20425606 is about 273.3537168354.

The spelling of 20425606 in words is "twenty million, four hundred twenty-five thousand, six hundred six".