20467265 has 16 divisors (see below), whose sum is σ = 30229248. Its totient is φ = 12954816.

The previous prime is 20467259. The next prime is 20467267. The reversal of 20467265 is 56276402.

It is not a de Polignac number, because 20467265 - 2¹⁶ = 20401729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20467267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22037 + ... + 22946.

It is an arithmetic number, because the mean of its divisors is an integer number (1889328).

Almost surely, 2^20467265 is an apocalyptic number.

It is an amenable number.

20467265 is a deficient number, since it is larger than the sum of its proper divisors (9761983).

20467265 is a wasteful number, since it uses less digits than its factorization.

20467265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45008.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20467265 is about 4524.0761487844. The cubic root of 20467265 is about 273.5394299605.

The spelling of 20467265 in words is "twenty million, four hundred sixty-seven thousand, two hundred sixty-five".