5280783561 has 9 divisors (see below), whose sum is σ = 7628113389. Its totient is φ = 3520377036.

The previous prime is 5280783527. The next prime is 5280783587. The reversal of 5280783561 is 1653870825.

The square root of 5280783561 is 72669.

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

5280783561 is a `hidden beast` number, since 5 + 2 + 8 + 0 + 7 + 83 + 561 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 5280783561 - 2¹³ = 5280775369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5280783511) 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, 205896 + ... + 230118.

Almost surely, 2^5280783561 is an apocalyptic number.

5280783561 is the 72669-th square number.

5280783561 is the 36335-th centered octagonal number.

It is an amenable number.

5280783561 is a deficient number, since it is larger than the sum of its proper divisors (2347329828).

5280783561 is an frugal number, since it uses more digits than its factorization.

5280783561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48452 (or 24226 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The cubic root of 5280783561 is about 1741.4036721377.

The spelling of 5280783561 in words is "five billion, two hundred eighty million, seven hundred eighty-three thousand, five hundred sixty-one".