56197856 has 48 divisors (see below), whose sum is σ = 129992688. Its totient is φ = 23577600.

The previous prime is 56197847. The next prime is 56197859. The reversal of 56197856 is 65879165.

It is a self number, because there is not a number n which added to its sum of digits gives 56197856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56197859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (2708181).

Almost surely, 2^56197856 is an apocalyptic number.

It is an amenable number.

56197856 is an abundant number, since it is smaller than the sum of its proper divisors (73794832).

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

56197856 is a wasteful number, since it uses less digits than its factorization.

56197856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12315 (or 12307 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 56197856 is about 7496.5229273310. The cubic root of 56197856 is about 383.0362842186.

The spelling of 56197856 in words is "fifty-six million, one hundred ninety-seven thousand, eight hundred fifty-six".