564480261 has 12 divisors (see below), whose sum is σ = 825185088. Its totient is φ = 371785704.

The previous prime is 564480233. The next prime is 564480281. The reversal of 564480261 is 162084465.

564480261 is a `hidden beast` number, since 5 + 644 + 8 + 0 + 2 + 6 + 1 = 666.

It is not a de Polignac number, because 564480261 - 2²⁹ = 27609349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564480211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377085 + ... + 378578.

It is an arithmetic number, because the mean of its divisors is an integer number (68765424).

Almost surely, 2^564480261 is an apocalyptic number.

It is an amenable number.

564480261 is a deficient number, since it is larger than the sum of its proper divisors (260704827).

564480261 is a wasteful number, since it uses less digits than its factorization.

564480261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755752 (or 755749 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 564480261 is about 23758.7933405718. The cubic root of 564480261 is about 826.4493706930.

It can be divided in two parts, 5644 and 80261, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 564480261 in words is "five hundred sixty-four million, four hundred eighty thousand, two hundred sixty-one".