20652701 has 2 divisors, whose sum is σ = 20652702. Its totient is φ = 20652700.

The previous prime is 20652673. The next prime is 20652719. The reversal of 20652701 is 10725602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18619225 + 2033476 = 4315^2 + 1426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20652701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20652721) 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, 10326350 + 10326351.

It is an arithmetic number, because the mean of its divisors is an integer number (10326351).

Almost surely, 2^20652701 is an apocalyptic number.

It is an amenable number.

20652701 is a deficient number, since it is larger than the sum of its proper divisors (1).

20652701 is an equidigital number, since it uses as much as digits as its factorization.

20652701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20652701 is about 4544.5242875355. The cubic root of 20652701 is about 274.3630481525.

The spelling of 20652701 in words is "twenty million, six hundred fifty-two thousand, seven hundred one".