20425713 has 16 divisors (see below), whose sum is σ = 33954816. Its totient is φ = 10610640.

The previous prime is 20425711. The next prime is 20425729. The reversal of 20425713 is 31752402.

It is not a de Polignac number, because 20425713 - 2¹ = 20425711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20425711) 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, 43981 + ... + 44442.

It is an arithmetic number, because the mean of its divisors is an integer number (2122176).

Almost surely, 2^20425713 is an apocalyptic number.

It is an amenable number.

20425713 is a deficient number, since it is larger than the sum of its proper divisors (13529103).

20425713 is a wasteful number, since it uses less digits than its factorization.

20425713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88444.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20425713 is about 4519.4814968091. The cubic root of 20425713 is about 273.3541941577.

The spelling of 20425713 in words is "twenty million, four hundred twenty-five thousand, seven hundred thirteen".