20260495 has 4 divisors (see below), whose sum is σ = 24312600. Its totient is φ = 16208392.

The previous prime is 20260477. The next prime is 20260511. The reversal of 20260495 is 59406202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20260495 - 2⁵ = 20260463 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2026045 + ... + 2026054.

It is an arithmetic number, because the mean of its divisors is an integer number (6078150).

Almost surely, 2^20260495 is an apocalyptic number.

20260495 is a deficient number, since it is larger than the sum of its proper divisors (4052105).

20260495 is an equidigital number, since it uses as much as digits as its factorization.

20260495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052104.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20260495 is about 4501.1659600597. The cubic root of 20260495 is about 272.6151688927.

Adding to 20260495 its reverse (59406202), we get a palindrome (79666697).

The spelling of 20260495 in words is "twenty million, two hundred sixty thousand, four hundred ninety-five".