56821186248 has 32 divisors (see below), whose sum is σ = 145356525600. Its totient is φ = 18499920768.

The previous prime is 56821186243. The next prime is 56821186249. The reversal of 56821186248 is 84268112865.

It is a self number, because there is not a number n which added to its sum of digits gives 56821186248.

It is not an unprimeable number, because it can be changed into a prime (56821186241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27528613 + ... + 27530676.

It is an arithmetic number, because the mean of its divisors is an integer number (4542391425).

Almost surely, 2^56821186248 is an apocalyptic number.

It is an amenable number.

56821186248 is an abundant number, since it is smaller than the sum of its proper divisors (88535339352).

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

56821186248 is a wasteful number, since it uses less digits than its factorization.

56821186248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55059341 (or 55059337 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 51.

The spelling of 56821186248 in words is "fifty-six billion, eight hundred twenty-one million, one hundred eighty-six thousand, two hundred forty-eight".