56573082540 has 432 divisors, whose sum is σ = 196619518368. Its totient is φ = 13086572544.

The previous prime is 56573082523. The next prime is 56573082581. The reversal of 56573082540 is 4528037565.

56573082540 is a `hidden beast` number, since 56 + 57 + 3 + 0 + 8 + 2 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 143 ways as a sum of consecutive naturals, for example, 163034647 + ... + 163034993.

It is an arithmetic number, because the mean of its divisors is an integer number (455137774).

Almost surely, 2^56573082540 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 56573082540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98309759184).

56573082540 is an abundant number, since it is smaller than the sum of its proper divisors (140046435828).

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

56573082540 is a wasteful number, since it uses less digits than its factorization.

56573082540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 56573082540 in words is "fifty-six billion, five hundred seventy-three million, eighty-two thousand, five hundred forty".