56539064800 has 144 divisors (see below), whose sum is σ = 142769112192. Its totient is φ = 21841459200.

The previous prime is 56539064779. The next prime is 56539064837. The reversal of 56539064800 is 846093565.

It is a super-3 number, since 3×56539064800³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13811554 + ... + 13815646.

It is an arithmetic number, because the mean of its divisors is an integer number (991452168).

Almost surely, 2^56539064800 is an apocalyptic number.

56539064800 is a gapful number since it is divisible by the number (50) 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 56539064800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71384556096).

56539064800 is an abundant number, since it is smaller than the sum of its proper divisors (86230047392).

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

56539064800 is a wasteful number, since it uses less digits than its factorization.

56539064800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701 (or 4688 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 56539064800 in words is "fifty-six billion, five hundred thirty-nine million, sixty-four thousand, eight hundred".