635352481 has 2 divisors, whose sum is σ = 635352482. Its totient is φ = 635352480.

The previous prime is 635352479. The next prime is 635352547. The reversal of 635352481 is 184253536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635040000 + 312481 = 25200^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 635352481 - 2¹ = 635352479 is a prime.

It is a super-2 number, since 2×635352481² = 807345550225710722, which contains 22 as substring.

Together with 635352479, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 635352481.

It is not a weakly prime, because it can be changed into another prime (635352401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317676240 + 317676241.

It is an arithmetic number, because the mean of its divisors is an integer number (317676241).

Almost surely, 2^635352481 is an apocalyptic number.

It is an amenable number.

635352481 is a deficient number, since it is larger than the sum of its proper divisors (1).

635352481 is an equidigital number, since it uses as much as digits as its factorization.

635352481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 37.

The square root of 635352481 is about 25206.1992573256. The cubic root of 635352481 is about 859.6828111868.

The spelling of 635352481 in words is "six hundred thirty-five million, three hundred fifty-two thousand, four hundred eighty-one".