56487805920 has 960 divisors, whose sum is σ = 247608700416. Its totient is φ = 11809566720.

The previous prime is 56487805861. The next prime is 56487805937. The reversal of 56487805920 is 2950878465.

56487805920 is a `hidden beast` number, since 5 + 6 + 48 + 7 + 8 + 0 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 248844847 + ... + 248845073.

Almost surely, 2^56487805920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56487805920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123804350208).

56487805920 is an abundant number, since it is smaller than the sum of its proper divisors (191120894496).

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

56487805920 is a wasteful number, since it uses less digits than its factorization.

56487805920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 56487805920 in words is "fifty-six billion, four hundred eighty-seven million, eight hundred five thousand, nine hundred twenty".