53590646509 has 2 divisors, whose sum is σ = 53590646510. Its totient is φ = 53590646508.

The previous prime is 53590646503. The next prime is 53590646521. The reversal of 53590646509 is 90564609535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39287204100 + 14303442409 = 198210^2 + 119597^2 .

It is a cyclic number.

It is not a de Polignac number, because 53590646509 - 2⁵ = 53590646477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53590646503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26795323254 + 26795323255.

It is an arithmetic number, because the mean of its divisors is an integer number (26795323255).

Almost surely, 2^53590646509 is an apocalyptic number.

It is an amenable number.

53590646509 is a deficient number, since it is larger than the sum of its proper divisors (1).

53590646509 is an equidigital number, since it uses as much as digits as its factorization.

53590646509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374000, while the sum is 52.

The spelling of 53590646509 in words is "fifty-three billion, five hundred ninety million, six hundred forty-six thousand, five hundred nine".