53885815609 has 2 divisors, whose sum is σ = 53885815610. Its totient is φ = 53885815608.

The previous prime is 53885815591. The next prime is 53885815649. The reversal of 53885815609 is 90651858835.

53885815609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48456336384 + 5429479225 = 220128^2 + 73685^2 .

It is a cyclic number.

It is not a de Polignac number, because 53885815609 - 2⁷ = 53885815481 is a prime.

It is a super-2 number, since 2×53885815609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53885815649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26942907804 + 26942907805.

It is an arithmetic number, because the mean of its divisors is an integer number (26942907805).

Almost surely, 2^53885815609 is an apocalyptic number.

It is an amenable number.

53885815609 is a deficient number, since it is larger than the sum of its proper divisors (1).

53885815609 is an equidigital number, since it uses as much as digits as its factorization.

53885815609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368000, while the sum is 58.

The spelling of 53885815609 in words is "fifty-three billion, eight hundred eighty-five million, eight hundred fifteen thousand, six hundred nine".