20025907 has 8 divisors (see below), whose sum is σ = 22551552. Its totient is φ = 17617800.

The previous prime is 20025899. The next prime is 20025911. The reversal of 20025907 is 70952002.

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 20025907 - 2³ = 20025899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20025937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29023 + ... + 29704.

It is an arithmetic number, because the mean of its divisors is an integer number (2818944).

Almost surely, 2^20025907 is an apocalyptic number.

20025907 is a deficient number, since it is larger than the sum of its proper divisors (2525645).

20025907 is a wasteful number, since it uses less digits than its factorization.

20025907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58769.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 20025907 is about 4475.0315082690. The cubic root of 20025907 is about 271.5589151178.

Adding to 20025907 its reverse (70952002), we get a palindrome (90977909).

The spelling of 20025907 in words is "twenty million, twenty-five thousand, nine hundred seven".