2582505561 has 8 divisors (see below), whose sum is σ = 3554416384. Its totient is φ = 1666132560.

The previous prime is 2582505559. The next prime is 2582505571. The reversal of 2582505561 is 1655052852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2582505561 - 2¹ = 2582505559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2582505521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13884346 + ... + 13884531.

It is an arithmetic number, because the mean of its divisors is an integer number (444302048).

Almost surely, 2^2582505561 is an apocalyptic number.

It is an amenable number.

2582505561 is a deficient number, since it is larger than the sum of its proper divisors (971910823).

2582505561 is a wasteful number, since it uses less digits than its factorization.

2582505561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27768911.

The product of its (nonzero) digits is 120000, while the sum is 39.

The square root of 2582505561 is about 50818.3585035959. The cubic root of 2582505561 is about 1371.9778137677.

The spelling of 2582505561 in words is "two billion, five hundred eighty-two million, five hundred five thousand, five hundred sixty-one".