53247029472 has 288 divisors, whose sum is σ = 192379299840. Its totient is φ = 13589959680.

The previous prime is 53247029447. The next prime is 53247029501. The reversal of 53247029472 is 27492074235.

53247029472 is a `hidden beast` number, since 53 + 247 + 0 + 294 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×53247029472² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 779679 + ... + 845217.

It is an arithmetic number, because the mean of its divisors is an integer number (667983680).

Almost surely, 2^53247029472 is an apocalyptic number.

53247029472 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 53247029472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96189649920).

53247029472 is an abundant number, since it is smaller than the sum of its proper divisors (139132270368).

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

53247029472 is a wasteful number, since it uses less digits than its factorization.

53247029472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65606 (or 65595 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 53247029472 in words is "fifty-three billion, two hundred forty-seven million, twenty-nine thousand, four hundred seventy-two".