20262601 has 2 divisors, whose sum is σ = 20262602. Its totient is φ = 20262600.

The previous prime is 20262587. The next prime is 20262637. The reversal of 20262601 is 10626202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20259001 + 3600 = 4501^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 20262601 - 2⁹ = 20262089 is a prime.

It is not a weakly prime, because it can be changed into another prime (20262661) by changing a digit.

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 as a sum of consecutive naturals, namely, 10131300 + 10131301.

It is an arithmetic number, because the mean of its divisors is an integer number (10131301).

Almost surely, 2^20262601 is an apocalyptic number.

It is an amenable number.

20262601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20262601 is an equidigital number, since it uses as much as digits as its factorization.

20262601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20262601 is about 4501.3998933665. The cubic root of 20262601 is about 272.6246143291.

Adding to 20262601 its reverse (10626202), we get a palindrome (30888803).

The spelling of 20262601 in words is "twenty million, two hundred sixty-two thousand, six hundred one".