56567421576 has 384 divisors, whose sum is σ = 174314448000. Its totient is φ = 16966236672.

The previous prime is 56567421541. The next prime is 56567421577. The reversal of 56567421576 is 67512476565.

It is a happy number.

56567421576 is a `hidden beast` number, since 5 + 6 + 5 + 67 + 4 + 2 + 1 + 576 = 666.

56567421576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (56567421577) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 142487010 + ... + 142487406.

It is an arithmetic number, because the mean of its divisors is an integer number (453943875).

Almost surely, 2^56567421576 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 56567421576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87157224000).

56567421576 is an abundant number, since it is smaller than the sum of its proper divisors (117747026424).

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

56567421576 is a wasteful number, since it uses less digits than its factorization.

56567421576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 497 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The spelling of 56567421576 in words is "fifty-six billion, five hundred sixty-seven million, four hundred twenty-one thousand, five hundred seventy-six".