5565577856 has 16 divisors (see below), whose sum is σ = 11087674890. Its totient is φ = 2782788864.

The previous prime is 5565577847. The next prime is 5565577879. The reversal of 5565577856 is 6587755655.

It can be written as a sum of positive squares in only one way, i.e., 5157537856 + 408040000 = 71816^2 + 20200^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 5565577795 and 5565577804.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21740411 + ... + 21740666.

Almost surely, 2^5565577856 is an apocalyptic number.

It is an amenable number.

5565577856 is a deficient number, since it is larger than the sum of its proper divisors (5522097034).

5565577856 is an equidigital number, since it uses as much as digits as its factorization.

5565577856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43481091 (or 43481079 counting only the distinct ones).

The product of its digits is 44100000, while the sum is 59.

The square root of 5565577856 is about 74602.8005908625. The cubic root of 5565577856 is about 1772.1620038484.

The spelling of 5565577856 in words is "five billion, five hundred sixty-five million, five hundred seventy-seven thousand, eight hundred fifty-six".