565379856 has 30 divisors (see below), whose sum is σ = 1582278750. Its totient is φ = 188459904.

The previous prime is 565379851. The next prime is 565379861. The reversal of 565379856 is 658973565.

565379856 is a `hidden beast` number, since 56 + 537 + 9 + 8 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (565379851) and next prime (565379861).

It can be written as a sum of positive squares in only one way, i.e., 483296256 + 82083600 = 21984^2 + 9060^2 .

It is not an unprimeable number, because it can be changed into a prime (565379851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1962981 + ... + 1963268.

It is an arithmetic number, because the mean of its divisors is an integer number (52742625).

Almost surely, 2^565379856 is an apocalyptic number.

It is an amenable number.

565379856 is an abundant number, since it is smaller than the sum of its proper divisors (1016898894).

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

565379856 is a wasteful number, since it uses less digits than its factorization.

565379856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926263 (or 3926254 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The square root of 565379856 is about 23777.7176364764. The cubic root of 565379856 is about 826.8881667407. Note that the first 3 decimals are identical.

The spelling of 565379856 in words is "five hundred sixty-five million, three hundred seventy-nine thousand, eight hundred fifty-six".