2564514548 has 24 divisors (see below), whose sum is σ = 4611453672. Its totient is φ = 1246990464.

The previous prime is 2564514541. The next prime is 2564514571. The reversal of 2564514548 is 8454154652.

It can be written as a sum of positive squares in 4 ways, for example, as 2229917284 + 334597264 = 47222^2 + 18292^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2564514499 and 2564514508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564514541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502586 + ... + 507662.

It is an arithmetic number, because the mean of its divisors is an integer number (192143903).

Almost surely, 2^2564514548 is an apocalyptic number.

It is an amenable number.

2564514548 is a deficient number, since it is larger than the sum of its proper divisors (2046939124).

2564514548 is a wasteful number, since it uses less digits than its factorization.

2564514548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531 (or 8529 counting only the distinct ones).

The product of its digits is 768000, while the sum is 44.

The square root of 2564514548 is about 50641.0362058282. The cubic root of 2564514548 is about 1368.7844276544.

The spelling of 2564514548 in words is "two billion, five hundred sixty-four million, five hundred fourteen thousand, five hundred forty-eight".