53223240111985 has 4 divisors (see below), whose sum is σ = 63867888134388. Its totient is φ = 42578592089584.

The previous prime is 53223240111983. The next prime is 53223240112013. The reversal of 53223240111985 is 58911104232235.

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 33599261541169 + 19623978570816 = 5796487^2 + 4429896^2 .

It is a cyclic number.

It is not a de Polignac number, because 53223240111985 - 2¹ = 53223240111983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53223240111983) 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, 5322324011194 + ... + 5322324011203.

It is an arithmetic number, because the mean of its divisors is an integer number (15966972033597).

Almost surely, 2^{53223240111985} is an apocalyptic number.

It is an amenable number.

53223240111985 is a deficient number, since it is larger than the sum of its proper divisors (10644648022403).

53223240111985 is a wasteful number, since it uses less digits than its factorization.

53223240111985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10644648022402.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 53223240111985 in words is "fifty-three trillion, two hundred twenty-three billion, two hundred forty million, one hundred eleven thousand, nine hundred eighty-five".