20000265 has 16 divisors (see below), whose sum is σ = 32057088. Its totient is φ = 10647936.

The previous prime is 20000243. The next prime is 20000269. The reversal of 20000265 is 56200002.

It is not a de Polignac number, because 20000265 - 2¹¹ = 19998217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20000269) 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, 13344 + ... + 14766.

It is an arithmetic number, because the mean of its divisors is an integer number (2003568).

Almost surely, 2^20000265 is an apocalyptic number.

It is an amenable number.

20000265 is a deficient number, since it is larger than the sum of its proper divisors (12056823).

20000265 is a wasteful number, since it uses less digits than its factorization.

20000265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20000265 is about 4472.1655828021. The cubic root of 20000265 is about 271.4429605220.

Adding to 20000265 its reverse (56200002), we get a palindrome (76200267).

The spelling of 20000265 in words is "twenty million, two hundred sixty-five", and thus it is an aban number.