253575323575381 has 2 divisors, whose sum is σ = 253575323575382. Its totient is φ = 253575323575380.

The previous prime is 253575323575337. The next prime is 253575323575403. The reversal of 253575323575381 is 183575323575352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131496469430481 + 122078854144900 = 11467191^2 + 11048930^2 .

It is a cyclic number.

It is not a de Polignac number, because 253575323575381 - 2⁷ = 253575323575253 is a prime.

It is a super-2 number, since 2×253575323575381² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253575323575331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126787661787690 + 126787661787691.

It is an arithmetic number, because the mean of its divisors is an integer number (126787661787691).

Almost surely, 2^{253575323575381} is an apocalyptic number.

It is an amenable number.

253575323575381 is a deficient number, since it is larger than the sum of its proper divisors (1).

253575323575381 is an equidigital number, since it uses as much as digits as its factorization.

253575323575381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 396900000, while the sum is 64.

The spelling of 253575323575381 in words is "two hundred fifty-three trillion, five hundred seventy-five billion, three hundred twenty-three million, five hundred seventy-five thousand, three hundred eighty-one".