53285513909 has 8 divisors (see below), whose sum is σ = 53740917720. Its totient is φ = 52831073536.

The previous prime is 53285513893. The next prime is 53285513929. The reversal of 53285513909 is 90931558235.

It can be written as a sum of positive squares in 4 ways, for example, as 10506865009 + 42778648900 = 102503^2 + 206830^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53285513909 - 2⁴ = 53285513893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53285513929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129554 + ... + 351219.

It is an arithmetic number, because the mean of its divisors is an integer number (6717614715).

Almost surely, 2^53285513909 is an apocalyptic number.

It is an amenable number.

53285513909 is a deficient number, since it is larger than the sum of its proper divisors (455403811).

53285513909 is a wasteful number, since it uses less digits than its factorization.

53285513909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481719.

The product of its (nonzero) digits is 1458000, while the sum is 50.

The spelling of 53285513909 in words is "fifty-three billion, two hundred eighty-five million, five hundred thirteen thousand, nine hundred nine".