20425683 has 16 divisors (see below), whose sum is σ = 28717056. Its totient is φ = 12894720.

The previous prime is 20425681. The next prime is 20425697. The reversal of 20425683 is 38652402.

It is not a de Polignac number, because 20425683 - 2¹ = 20425681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20425683.

It is not an unprimeable number, because it can be changed into a prime (20425681) 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, 2035 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (1794816).

Almost surely, 2^20425683 is an apocalyptic number.

20425683 is a deficient number, since it is larger than the sum of its proper divisors (8291373).

20425683 is a wasteful number, since it uses less digits than its factorization.

20425683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 20425683 is about 4519.4781778431. The cubic root of 20425683 is about 273.3540603292.

The spelling of 20425683 in words is "twenty million, four hundred twenty-five thousand, six hundred eighty-three".