259632492481 has 2 divisors, whose sum is σ = 259632492482. Its totient is φ = 259632492480.

The previous prime is 259632492439. The next prime is 259632492487. The reversal of 259632492481 is 184294236952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233297694081 + 26334798400 = 483009^2 + 162280^2 .

It is a cyclic number.

It is not a de Polignac number, because 259632492481 - 2¹¹ = 259632490433 is a prime.

It is a super-2 number, since 2×259632492481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (259632492487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129816246240 + 129816246241.

It is an arithmetic number, because the mean of its divisors is an integer number (129816246241).

Almost surely, 2^259632492481 is an apocalyptic number.

It is an amenable number.

259632492481 is a deficient number, since it is larger than the sum of its proper divisors (1).

259632492481 is an equidigital number, since it uses as much as digits as its factorization.

259632492481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 55.

The spelling of 259632492481 in words is "two hundred fifty-nine billion, six hundred thirty-two million, four hundred ninety-two thousand, four hundred eighty-one".