52987011065856 has 384 divisors, whose sum is σ = 179788620211200. Its totient is φ = 15104922992640.

The previous prime is 52987011065851. The next prime is 52987011065861. The reversal of 52987011065856 is 65856011078925.

52987011065856 is a `hidden beast` number, since 529 + 8 + 7 + 0 + 1 + 1 + 0 + 6 + 58 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (52987011065851) and next prime (52987011065861).

It is a tau number, because it is divible by the number of its divisors (384).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 52987011065793 and 52987011065802.

It is not an unprimeable number, because it can be changed into a prime (52987011065851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171318391 + ... + 171627401.

It is an arithmetic number, because the mean of its divisors is an integer number (468199531800).

Almost surely, 2^{52987011065856} is an apocalyptic number.

52987011065856 is a gapful number since it is divisible by the number (56) 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 52987011065856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89894310105600).

52987011065856 is an abundant number, since it is smaller than the sum of its proper divisors (126801609145344).

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

52987011065856 is a wasteful number, since it uses less digits than its factorization.

52987011065856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309492 (or 309466 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 63.

The spelling of 52987011065856 in words is "fifty-two trillion, nine hundred eighty-seven billion, eleven million, sixty-five thousand, eight hundred fifty-six".