253426127221 has 2 divisors, whose sum is σ = 253426127222. Its totient is φ = 253426127220.

The previous prime is 253426127179. The next prime is 253426127249. The reversal of 253426127221 is 122721624352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140018156100 + 113407971121 = 374190^2 + 336761^2 .

It is a cyclic number.

It is not a de Polignac number, because 253426127221 - 2⁷ = 253426127093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253426127291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126713063610 + 126713063611.

It is an arithmetic number, because the mean of its divisors is an integer number (126713063611).

Almost surely, 2^253426127221 is an apocalyptic number.

It is an amenable number.

253426127221 is a deficient number, since it is larger than the sum of its proper divisors (1).

253426127221 is an equidigital number, since it uses as much as digits as its factorization.

253426127221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The spelling of 253426127221 in words is "two hundred fifty-three billion, four hundred twenty-six million, one hundred twenty-seven thousand, two hundred twenty-one".