253422665708257 has 2 divisors, whose sum is σ = 253422665708258. Its totient is φ = 253422665708256.

The previous prime is 253422665708227. The next prime is 253422665708269. The reversal of 253422665708257 is 752807566224352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204660949312576 + 48761716395681 = 14305976^2 + 6982959^2 .

It is a cyclic number.

It is not a de Polignac number, because 253422665708257 - 2¹⁵ = 253422665675489 is a prime.

It is a super-3 number, since 3×253422665708257³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (253422665708227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126711332854128 + 126711332854129.

It is an arithmetic number, because the mean of its divisors is an integer number (126711332854129).

Almost surely, 2^{253422665708257} is an apocalyptic number.

It is an amenable number.

253422665708257 is a deficient number, since it is larger than the sum of its proper divisors (1).

253422665708257 is an equidigital number, since it uses as much as digits as its factorization.

253422665708257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688000, while the sum is 64.

The spelling of 253422665708257 in words is "two hundred fifty-three trillion, four hundred twenty-two billion, six hundred sixty-five million, seven hundred eight thousand, two hundred fifty-seven".