253188906653 has 2 divisors, whose sum is σ = 253188906654. Its totient is φ = 253188906652.

The previous prime is 253188906571. The next prime is 253188906661. The reversal of 253188906653 is 356609881352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162019935289 + 91168971364 = 402517^2 + 301942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253188906653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253188906353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126594453326 + 126594453327.

It is an arithmetic number, because the mean of its divisors is an integer number (126594453327).

Almost surely, 2^253188906653 is an apocalyptic number.

It is an amenable number.

253188906653 is a deficient number, since it is larger than the sum of its proper divisors (1).

253188906653 is an equidigital number, since it uses as much as digits as its factorization.

253188906653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 253188906653 in words is "two hundred fifty-three billion, one hundred eighty-eight million, nine hundred six thousand, six hundred fifty-three".