53438113272 has 32 divisors (see below), whose sum is σ = 133602065280. Its totient is φ = 17811800160.

The previous prime is 53438113249. The next prime is 53438113273. The reversal of 53438113272 is 27231183435.

53438113272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53438113272² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53438113272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53438113273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566053 + ... + 653675.

It is an arithmetic number, because the mean of its divisors is an integer number (4175064540).

Almost surely, 2^53438113272 is an apocalyptic number.

It is an amenable number.

53438113272 is an abundant number, since it is smaller than the sum of its proper divisors (80163952008).

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

53438113272 is a wasteful number, since it uses less digits than its factorization.

53438113272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113043 (or 113039 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The spelling of 53438113272 in words is "fifty-three billion, four hundred thirty-eight million, one hundred thirteen thousand, two hundred seventy-two".