20653153 has 2 divisors, whose sum is σ = 20653154. Its totient is φ = 20653152.

The previous prime is 20653151. The next prime is 20653159. The reversal of 20653153 is 35135602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 5536609 = 3888^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 20653153 - 2¹ = 20653151 is a prime.

Together with 20653151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20653151) 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 as a sum of consecutive naturals, namely, 10326576 + 10326577.

It is an arithmetic number, because the mean of its divisors is an integer number (10326577).

Almost surely, 2^20653153 is an apocalyptic number.

It is an amenable number.

20653153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20653153 is an equidigital number, since it uses as much as digits as its factorization.

20653153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 20653153 is about 4544.5740174410. The cubic root of 20653153 is about 274.3650496856.

Adding to 20653153 its reverse (35135602), we get a palindrome (55788755).

The spelling of 20653153 in words is "twenty million, six hundred fifty-three thousand, one hundred fifty-three".