56873000533561 has 9 divisors (see below), whose sum is σ = 57602628150543. Its totient is φ = 56152500903720.

The previous prime is 56873000533537. The next prime is 56873000533567. The reversal of 56873000533561 is 16533500037865.

The square root of 56873000533561 is 7541419.

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

It can be written as a sum of positive squares in only one way, i.e., 37398961089961 + 19474039443600 = 6115469^2 + 4412940^2 .

It is not a de Polignac number, because 56873000533561 - 2⁵ = 56873000533529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56873000533499 and 56873000533508.

It is not an unprimeable number, because it can be changed into a prime (56873000533567) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 595724371 + ... + 595819831.

It is an arithmetic number, because the mean of its divisors is an integer number (6400292016727).

Almost surely, 2^{56873000533561} is an apocalyptic number.

56873000533561 is the 7541419-th square number.

56873000533561 is the 3770710-th centered octagonal number.

It is an amenable number.

56873000533561 is a deficient number, since it is larger than the sum of its proper divisors (729627616982).

56873000533561 is an frugal number, since it uses more digits than its factorization.

56873000533561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191080 (or 95540 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 52.

The spelling of 56873000533561 in words is "fifty-six trillion, eight hundred seventy-three billion, five hundred thirty-three thousand, five hundred sixty-one".