20272565 has 8 divisors (see below), whose sum is σ = 24893088. Its totient is φ = 15840720.

The previous prime is 20272561. The next prime is 20272589. The reversal of 20272565 is 56527202.

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

It is not a de Polignac number, because 20272565 - 2² = 20272561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20272561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46931 + ... + 47360.

It is an arithmetic number, because the mean of its divisors is an integer number (3111636).

Almost surely, 2^20272565 is an apocalyptic number.

It is an amenable number.

20272565 is a deficient number, since it is larger than the sum of its proper divisors (4620523).

20272565 is an equidigital number, since it uses as much as digits as its factorization.

20272565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94339.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 20272565 is about 4502.5065241485. The cubic root of 20272565 is about 272.6692941231.

Adding to 20272565 its reverse (56527202), we get a palindrome (76799767).

The spelling of 20272565 in words is "twenty million, two hundred seventy-two thousand, five hundred sixty-five".