20725027 has 4 divisors (see below), whose sum is σ = 20734360. Its totient is φ = 20715696.

The previous prime is 20725013. The next prime is 20725037. The reversal of 20725027 is 72052702.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20725027 - 2¹¹ = 20722979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20724992 and 20725010.

It is not an unprimeable number, because it can be changed into a prime (20725007) 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 3 ways as a sum of consecutive naturals, for example, 799 + ... + 6487.

It is an arithmetic number, because the mean of its divisors is an integer number (5183590).

Almost surely, 2^20725027 is an apocalyptic number.

20725027 is a deficient number, since it is larger than the sum of its proper divisors (9333).

20725027 is an equidigital number, since it uses as much as digits as its factorization.

20725027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9332.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 20725027 is about 4552.4748214570. The cubic root of 20725027 is about 274.6829492094.

Adding to 20725027 its reverse (72052702), we get a palindrome (92777729).

The spelling of 20725027 in words is "twenty million, seven hundred twenty-five thousand, twenty-seven".