53498153809 has 4 divisors (see below), whose sum is σ = 53688538980. Its totient is φ = 53307768640.

The previous prime is 53498153803. The next prime is 53498153873. The reversal of 53498153809 is 90835189435.

53498153809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35319564225 + 18178589584 = 187935^2 + 134828^2 .

It is a cyclic number.

It is not a de Polignac number, because 53498153809 - 2⁹ = 53498153297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53498153809.

It is not an unprimeable number, because it can be changed into a prime (53498153803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95192164 + ... + 95192725.

It is an arithmetic number, because the mean of its divisors is an integer number (13422134745).

Almost surely, 2^53498153809 is an apocalyptic number.

It is an amenable number.

53498153809 is a deficient number, since it is larger than the sum of its proper divisors (190385171).

53498153809 is a wasteful number, since it uses less digits than its factorization.

53498153809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190385170.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 53498153809 in words is "fifty-three billion, four hundred ninety-eight million, one hundred fifty-three thousand, eight hundred nine".