20626265 has 24 divisors (see below), whose sum is σ = 27553344. Its totient is φ = 14810400.

The previous prime is 20626261. The next prime is 20626303. The reversal of 20626265 is 56262602.

It is not a de Polignac number, because 20626265 - 2² = 20626261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20626261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62150 + ... + 62480.

It is an arithmetic number, because the mean of its divisors is an integer number (1148056).

Almost surely, 2^20626265 is an apocalyptic number.

It is an amenable number.

20626265 is a deficient number, since it is larger than the sum of its proper divisors (6927079).

20626265 is a wasteful number, since it uses less digits than its factorization.

20626265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20626265 is about 4541.6148009271. The cubic root of 20626265 is about 274.2459341982.

Adding to 20626265 its reverse (56262602), we get a palindrome (76888867).

The spelling of 20626265 in words is "twenty million, six hundred twenty-six thousand, two hundred sixty-five".