20562026 has 16 divisors (see below), whose sum is σ = 31648320. Its totient is φ = 10016160.

The previous prime is 20562011. The next prime is 20562029. The reversal of 20562026 is 62026502.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20561992 and 20562010.

It is not an unprimeable number, because it can be changed into a prime (20562029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11825 + ... + 13451.

It is an arithmetic number, because the mean of its divisors is an integer number (1978020).

Almost surely, 2^20562026 is an apocalyptic number.

20562026 is a deficient number, since it is larger than the sum of its proper divisors (11086294).

20562026 is a wasteful number, since it uses less digits than its factorization.

20562026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20562026 is about 4534.5370215712. The cubic root of 20562026 is about 273.9609317910.

Adding to 20562026 its reverse (62026502), we get a palindrome (82588528).

The spelling of 20562026 in words is "twenty million, five hundred sixty-two thousand, twenty-six".