659459953 has 2 divisors, whose sum is σ = 659459954. Its totient is φ = 659459952.

The previous prime is 659459951. The next prime is 659460001. The reversal of 659459953 is 359954956.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458302464 + 201157489 = 21408^2 + 14183^2 .

It is a cyclic number.

It is not a de Polignac number, because 659459953 - 2¹ = 659459951 is a prime.

It is a super-2 number, since 2×659459953² = 869774859221524418, which contains 22 as substring.

Together with 659459951, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 659459894 and 659459903.

It is not a weakly prime, because it can be changed into another prime (659459951) 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, 329729976 + 329729977.

It is an arithmetic number, because the mean of its divisors is an integer number (329729977).

Almost surely, 2^659459953 is an apocalyptic number.

It is an amenable number.

659459953 is a deficient number, since it is larger than the sum of its proper divisors (1).

659459953 is an equidigital number, since it uses as much as digits as its factorization.

659459953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6561000, while the sum is 55.

The square root of 659459953 is about 25679.9523558748. The cubic root of 659459953 is about 870.4212312582.

The spelling of 659459953 in words is "six hundred fifty-nine million, four hundred fifty-nine thousand, nine hundred fifty-three".