253522121189 has 2 divisors, whose sum is σ = 253522121190. Its totient is φ = 253522121188.

The previous prime is 253522121159. The next prime is 253522121207. The reversal of 253522121189 is 981121225352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248020932289 + 5501188900 = 498017^2 + 74170^2 .

It is a cyclic number.

It is not a de Polignac number, because 253522121189 - 2⁸ = 253522120933 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 (253522121159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126761060594 + 126761060595.

It is an arithmetic number, because the mean of its divisors is an integer number (126761060595).

Almost surely, 2^253522121189 is an apocalyptic number.

It is an amenable number.

253522121189 is a deficient number, since it is larger than the sum of its proper divisors (1).

253522121189 is an equidigital number, since it uses as much as digits as its factorization.

253522121189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 41.

The spelling of 253522121189 in words is "two hundred fifty-three billion, five hundred twenty-two million, one hundred twenty-one thousand, one hundred eighty-nine".