56521036260 has 216 divisors, whose sum is σ = 189261694440. Its totient is φ = 13572587520.

The previous prime is 56521036199. The next prime is 56521036289. The reversal of 56521036260 is 6263012565.

It is a happy number.

56521036260 is a `hidden beast` number, since 5 + 6 + 5 + 21 + 0 + 3 + 626 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 47939978304 + 8581057956 = 218952^2 + 92634^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3926356 + ... + 3940724.

Almost surely, 2^56521036260 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 56521036260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94630847220).

56521036260 is an abundant number, since it is smaller than the sum of its proper divisors (132740658180).

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

56521036260 is a wasteful number, since it uses less digits than its factorization.

56521036260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14479 (or 14433 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 56521036260 in words is "fifty-six billion, five hundred twenty-one million, thirty-six thousand, two hundred sixty".