253537295969 has 2 divisors, whose sum is σ = 253537295970. Its totient is φ = 253537295968.

The previous prime is 253537295953. The next prime is 253537296017. The reversal of 253537295969 is 969592735352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146908924369 + 106628371600 = 383287^2 + 326540^2 .

It is a cyclic number.

It is not a de Polignac number, because 253537295969 - 2⁴ = 253537295953 is a prime.

It is a super-2 number, since 2×253537295969² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253537295929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126768647984 + 126768647985.

It is an arithmetic number, because the mean of its divisors is an integer number (126768647985).

Almost surely, 2^253537295969 is an apocalyptic number.

It is an amenable number.

253537295969 is a deficient number, since it is larger than the sum of its proper divisors (1).

253537295969 is an equidigital number, since it uses as much as digits as its factorization.

253537295969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137781000, while the sum is 65.

The spelling of 253537295969 in words is "two hundred fifty-three billion, five hundred thirty-seven million, two hundred ninety-five thousand, nine hundred sixty-nine".