53643351116500 has 24 divisors (see below), whose sum is σ = 117157078839528. Its totient is φ = 21457340446400.

The previous prime is 53643351116429. The next prime is 53643351116513. The reversal of 53643351116500 is 561115334635.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71462120976 + 53571888995524 = 267324^2 + 7319282^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53643350617 + ... + 53643351616.

It is an arithmetic number, because the mean of its divisors is an integer number (4881544951647).

Almost surely, 2^{53643351116500} is an apocalyptic number.

53643351116500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53643351116500 is an abundant number, since it is smaller than the sum of its proper divisors (63513727723028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53643351116500 is a wasteful number, since it uses less digits than its factorization.

53643351116500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107286702252 (or 107286702240 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 53643351116500 in words is "fifty-three trillion, six hundred forty-three billion, three hundred fifty-one million, one hundred sixteen thousand, five hundred".