20025849 has 8 divisors (see below), whose sum is σ = 26762400. Its totient is φ = 13319936.

The previous prime is 20025833. The next prime is 20025853. The reversal of 20025849 is 94852002.

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

It is a cyclic number.

It is not a de Polignac number, because 20025849 - 2⁴ = 20025833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20025899) 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 in 7 ways as a sum of consecutive naturals, for example, 6087 + ... + 8780.

It is an arithmetic number, because the mean of its divisors is an integer number (3345300).

Almost surely, 2^20025849 is an apocalyptic number.

It is an amenable number.

20025849 is a deficient number, since it is larger than the sum of its proper divisors (6736551).

20025849 is a wasteful number, since it uses less digits than its factorization.

20025849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15319.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 20025849 is about 4475.0250278630. The cubic root of 20025849 is about 271.5586529502.

The spelling of 20025849 in words is "twenty million, twenty-five thousand, eight hundred forty-nine".