20626273 has 4 divisors (see below), whose sum is σ = 20636928. Its totient is φ = 20615620.

The previous prime is 20626261. The next prime is 20626303. The reversal of 20626273 is 37262602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20626273 - 2⁵ = 20626241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20626213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513 + ... + 6598.

It is an arithmetic number, because the mean of its divisors is an integer number (5159232).

Almost surely, 2^20626273 is an apocalyptic number.

It is an amenable number.

20626273 is a deficient number, since it is larger than the sum of its proper divisors (10655).

20626273 is an equidigital number, since it uses as much as digits as its factorization.

20626273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10654.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 20626273 is about 4541.6156816710. The cubic root of 20626273 is about 274.2459696540.

Adding to 20626273 its reverse (37262602), we get a palindrome (57888875).

The spelling of 20626273 in words is "twenty million, six hundred twenty-six thousand, two hundred seventy-three".