56856345 has 64 divisors (see below), whose sum is σ = 116895744. Its totient is φ = 22936320.

The previous prime is 56856343. The next prime is 56856361. The reversal of 56856345 is 54365865.

It is a happy number.

It is not a de Polignac number, because 56856345 - 2¹ = 56856343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56856297 and 56856306.

It is not an unprimeable number, because it can be changed into a prime (56856343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30490 + ... + 32300.

It is an arithmetic number, because the mean of its divisors is an integer number (1826496).

Almost surely, 2^56856345 is an apocalyptic number.

It is an amenable number.

56856345 is an abundant number, since it is smaller than the sum of its proper divisors (60039399).

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

56856345 is a wasteful number, since it uses less digits than its factorization.

56856345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862.

The product of its digits is 432000, while the sum is 42.

The square root of 56856345 is about 7540.3146486072. The cubic root of 56856345 is about 384.5265332860.

The spelling of 56856345 in words is "fifty-six million, eight hundred fifty-six thousand, three hundred forty-five".