53448100709 has 4 divisors (see below), whose sum is σ = 53451767916. Its totient is φ = 53444433504.

The previous prime is 53448100703. The next prime is 53448100729. The reversal of 53448100709 is 90700184435.

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 23059941025 + 30388159684 = 151855^2 + 174322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53448100709 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 (53448100703) 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 in 3 ways as a sum of consecutive naturals, for example, 1811654 + ... + 1840919.

It is an arithmetic number, because the mean of its divisors is an integer number (13362941979).

Almost surely, 2^53448100709 is an apocalyptic number.

It is an amenable number.

53448100709 is a deficient number, since it is larger than the sum of its proper divisors (3667207).

53448100709 is a wasteful number, since it uses less digits than its factorization.

53448100709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667206.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 53448100709 in words is "fifty-three billion, four hundred forty-eight million, one hundred thousand, seven hundred nine".