20753227 has 4 divisors (see below), whose sum is σ = 22639896. Its totient is φ = 18866560.

The previous prime is 20753207. The next prime is 20753251. The reversal of 20753227 is 72235702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20753227 - 2⁷ = 20753099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20753195 and 20753204.

It is not an unprimeable number, because it can be changed into a prime (20753207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943318 + ... + 943339.

It is an arithmetic number, because the mean of its divisors is an integer number (5659974).

Almost surely, 2^20753227 is an apocalyptic number.

20753227 is a deficient number, since it is larger than the sum of its proper divisors (1886669).

20753227 is a wasteful number, since it uses less digits than its factorization.

20753227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886668.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 20753227 is about 4555.5709850687. The cubic root of 20753227 is about 274.8074773710.

Adding to 20753227 its reverse (72235702), we get a palindrome (92988929).

The spelling of 20753227 in words is "twenty million, seven hundred fifty-three thousand, two hundred twenty-seven".