53243740272 has 20 divisors (see below), whose sum is σ = 137546329160. Its totient is φ = 17747913408.

The previous prime is 53243740183. The next prime is 53243740351. The reversal of 53243740272 is 27204734235.

It is a self number, because there is not a number n which added to its sum of digits gives 53243740272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554622247 + ... + 554622342.

It is an arithmetic number, because the mean of its divisors is an integer number (6877316458).

Almost surely, 2^53243740272 is an apocalyptic number.

It is an amenable number.

53243740272 is an abundant number, since it is smaller than the sum of its proper divisors (84302588888).

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

53243740272 is a wasteful number, since it uses less digits than its factorization.

53243740272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109244600 (or 1109244594 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 39.

The spelling of 53243740272 in words is "fifty-three billion, two hundred forty-three million, seven hundred forty thousand, two hundred seventy-two".