20265265 has 8 divisors (see below), whose sum is σ = 24546240. Its totient is φ = 16060272.

The previous prime is 20265253. The next prime is 20265269. The reversal of 20265265 is 56256202.

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

It is not a de Polignac number, because 20265265 - 2⁷ = 20265137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20265269) 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, 18405 + ... + 19474.

It is an arithmetic number, because the mean of its divisors is an integer number (3068280).

Almost surely, 2^20265265 is an apocalyptic number.

It is an amenable number.

20265265 is a deficient number, since it is larger than the sum of its proper divisors (4280975).

20265265 is a wasteful number, since it uses less digits than its factorization.

20265265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37991.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 20265265 is about 4501.6957915879. The cubic root of 20265265 is about 272.6365614651.

The spelling of 20265265 in words is "twenty million, two hundred sixty-five thousand, two hundred sixty-five".