2567661248 has 28 divisors (see below), whose sum is σ = 5118079680. Its totient is φ = 1278066432.

The previous prime is 2567661223. The next prime is 2567661259. The reversal of 2567661248 is 8421667652.

Added to its reverse (8421667652) it gives a square (10989328900 = 104830²).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75683 + ... + 104226.

It is an arithmetic number, because the mean of its divisors is an integer number (182788560).

Almost surely, 2^2567661248 is an apocalyptic number.

It is an amenable number.

2567661248 is a deficient number, since it is larger than the sum of its proper divisors (2550418432).

2567661248 is a wasteful number, since it uses less digits than its factorization.

2567661248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180144 (or 180134 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 2567661248 is about 50672.0953582936. The cubic root of 2567661248 is about 1369.3440388959.

Adding to 2567661248 its reverse (8421667652), we get a square (10989328900 = 104830²).

The spelling of 2567661248 in words is "two billion, five hundred sixty-seven million, six hundred sixty-one thousand, two hundred forty-eight".