19680253 has 2 divisors, whose sum is σ = 19680254. Its totient is φ = 19680252.

The previous prime is 19680251. The next prime is 19680293. The reversal of 19680253 is 35208691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13264164 + 6416089 = 3642^2 + 2533^2 .

It is a cyclic number.

It is not a de Polignac number, because 19680253 - 2¹ = 19680251 is a prime.

Together with 19680251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19680251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9840126 + 9840127.

It is an arithmetic number, because the mean of its divisors is an integer number (9840127).

Almost surely, 2^19680253 is an apocalyptic number.

It is an amenable number.

19680253 is a deficient number, since it is larger than the sum of its proper divisors (1).

19680253 is an equidigital number, since it uses as much as digits as its factorization.

19680253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 19680253 is about 4436.2431177743. The cubic root of 19680253 is about 269.9874388304.

The spelling of 19680253 in words is "nineteen million, six hundred eighty thousand, two hundred fifty-three".