56558828041 has 3 divisors (see below), whose sum is σ = 56559065863. Its totient is φ = 56558590220.

The previous prime is 56558828009. The next prime is 56558828089. The reversal of 56558828041 is 14082885565.

The square root of 56558828041 is 237821.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5509944441 + 51048883600 = 74229^2 + 225940^2 .

It is not a de Polignac number, because 56558828041 - 2⁵ = 56558828009 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 56558828041.

It is not an unprimeable number, because it can be changed into a prime (56558828941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 118911 + ... + 356731.

Almost surely, 2^56558828041 is an apocalyptic number.

56558828041 is the 237821-st square number.

56558828041 is the 118911-st centered octagonal number.

It is an amenable number.

56558828041 is a deficient number, since it is larger than the sum of its proper divisors (237822).

56558828041 is an frugal number, since it uses more digits than its factorization.

56558828041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475642 (or 237821 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 52.

The spelling of 56558828041 in words is "fifty-six billion, five hundred fifty-eight million, eight hundred twenty-eight thousand, forty-one".