53247520872 has 432 divisors, whose sum is σ = 182989254240. Its totient is φ = 13695941376.

The previous prime is 53247520871. The next prime is 53247520901. The reversal of 53247520872 is 27802574235.

53247520872 is a `hidden beast` number, since 5 + 3 + 2 + 47 + 520 + 87 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (53247520871) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 188153643 + ... + 188153925.

Almost surely, 2^53247520872 is an apocalyptic number.

53247520872 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 53247520872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91494627120).

53247520872 is an abundant number, since it is smaller than the sum of its proper divisors (129741733368).

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

53247520872 is a wasteful number, since it uses less digits than its factorization.

53247520872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 53247520872 in words is "fifty-three billion, two hundred forty-seven million, five hundred twenty thousand, eight hundred seventy-two".