56821345332 has 96 divisors (see below), whose sum is σ = 137776730112. Its totient is φ = 18211608576.

The previous prime is 56821345307. The next prime is 56821345333. The reversal of 56821345332 is 23354312865.

56821345332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56821345333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19214398 + ... + 19217354.

It is an arithmetic number, because the mean of its divisors is an integer number (1435174272).

Almost surely, 2^56821345332 is an apocalyptic number.

It is an amenable number.

56821345332 is an abundant number, since it is smaller than the sum of its proper divisors (80955384780).

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

56821345332 is a wasteful number, since it uses less digits than its factorization.

56821345332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497 (or 3495 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The spelling of 56821345332 in words is "fifty-six billion, eight hundred twenty-one million, three hundred forty-five thousand, three hundred thirty-two".