563130261 has 6 divisors (see below), whose sum is σ = 813410390. Its totient is φ = 375420168.

The previous prime is 563130259. The next prime is 563130263. The reversal of 563130261 is 162031365.

563130261 is a `hidden beast` number, since 5 + 631 + 3 + 0 + 26 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (563130259) and next prime (563130263).

It can be written as a sum of positive squares in only one way, i.e., 551780100 + 11350161 = 23490^2 + 3369^2 .

It is not a de Polignac number, because 563130261 - 2¹ = 563130259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563130263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31285006 + ... + 31285023.

Almost surely, 2^563130261 is an apocalyptic number.

It is an amenable number.

563130261 is a deficient number, since it is larger than the sum of its proper divisors (250280129).

563130261 is a wasteful number, since it uses less digits than its factorization.

563130261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62570035 (or 62570032 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 563130261 is about 23730.3657999619. The cubic root of 563130261 is about 825.7900046972.

It can be divided in two parts, 563130 and 261, that added together give a triangular number (563391 = T₁₀₆₁).

The spelling of 563130261 in words is "five hundred sixty-three million, one hundred thirty thousand, two hundred sixty-one".