53391267072 has 576 divisors, whose sum is σ = 195321369600. Its totient is φ = 14143610880.

The previous prime is 53391266993. The next prime is 53391267101. The reversal of 53391267072 is 27076219335.

53391267072 is a `hidden beast` number, since 533 + 91 + 26 + 7 + 0 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18778483 + ... + 18781325.

It is an arithmetic number, because the mean of its divisors is an integer number (339099600).

Almost surely, 2^53391267072 is an apocalyptic number.

53391267072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53391267072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97660684800).

53391267072 is an abundant number, since it is smaller than the sum of its proper divisors (141930102528).

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

53391267072 is a wasteful number, since it uses less digits than its factorization.

53391267072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911 (or 2891 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 53391267072 in words is "fifty-three billion, three hundred ninety-one million, two hundred sixty-seven thousand, seventy-two".