20265273 has 18 divisors (see below), whose sum is σ = 34051914. Its totient is φ = 11579904.

The previous prime is 20265269. The next prime is 20265299. The reversal of 20265273 is 37256202.

20265273 is a `hidden beast` number, since 2 + 0 + 2 + 652 + 7 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15586704 + 4678569 = 3948^2 + 2163^2 .

It is not a de Polignac number, because 20265273 - 2² = 20265269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20265253) 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 17 ways as a sum of consecutive naturals, for example, 22536 + ... + 23417.

It is an arithmetic number, because the mean of its divisors is an integer number (1891773).

Almost surely, 2^20265273 is an apocalyptic number.

It is an amenable number.

20265273 is a deficient number, since it is larger than the sum of its proper divisors (13786641).

20265273 is a wasteful number, since it uses less digits than its factorization.

20265273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45973 (or 45963 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20265273 is about 4501.6966801418. The cubic root of 20265273 is about 272.6365973408.

The spelling of 20265273 in words is "twenty million, two hundred sixty-five thousand, two hundred seventy-three".