2564561304115 has 8 divisors (see below), whose sum is σ = 3077482425408. Its totient is φ = 2051643136320.

The previous prime is 2564561304103. The next prime is 2564561304119. The reversal of 2564561304115 is 5114031654652.

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

It is not a de Polignac number, because 2564561304115 - 2¹⁵ = 2564561271347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564561304119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2334495 + ... + 3252535.

It is an arithmetic number, because the mean of its divisors is an integer number (384685303176).

Almost surely, 2^{2564561304115} is an apocalyptic number.

2564561304115 is a deficient number, since it is larger than the sum of its proper divisors (512921121293).

2564561304115 is an equidigital number, since it uses as much as digits as its factorization.

2564561304115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476749.

The product of its (nonzero) digits is 432000, while the sum is 43.

Adding to 2564561304115 its reverse (5114031654652), we get a palindrome (7678592958767).

The spelling of 2564561304115 in words is "two trillion, five hundred sixty-four billion, five hundred sixty-one million, three hundred four thousand, one hundred fifteen".