56563897 has 8 divisors (see below), whose sum is σ = 61914440. Its totient is φ = 51356160.

The previous prime is 56563883. The next prime is 56563951. The reversal of 56563897 is 79836565.

It can be written as a sum of positive squares in 4 ways, for example, as 10106041 + 46457856 = 3179^2 + 6816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56563897 - 2¹¹ = 56561849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56563897.

It is not an unprimeable number, because it can be changed into a prime (56563807) 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, 34872 + ... + 36457.

It is an arithmetic number, because the mean of its divisors is an integer number (7739305).

Almost surely, 2^56563897 is an apocalyptic number.

It is an amenable number.

56563897 is a deficient number, since it is larger than the sum of its proper divisors (5350543).

56563897 is a wasteful number, since it uses less digits than its factorization.

56563897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71403.

The product of its digits is 1360800, while the sum is 49.

The square root of 56563897 is about 7520.8973533748. The cubic root of 56563897 is about 383.8661122679.

The spelling of 56563897 in words is "fifty-six million, five hundred sixty-three thousand, eight hundred ninety-seven".