2564523206 has 16 divisors (see below), whose sum is σ = 4515146016. Its totient is φ = 1069376256.

The previous prime is 2564523187. The next prime is 2564523223. The reversal of 2564523206 is 6023254652.

It is a super-2 number, since 2×2564523206² = 13153558548225036872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474891 + ... + 2475926.

It is an arithmetic number, because the mean of its divisors is an integer number (282196626).

Almost surely, 2^2564523206 is an apocalyptic number.

2564523206 is a deficient number, since it is larger than the sum of its proper divisors (1950622810).

2564523206 is a wasteful number, since it uses less digits than its factorization.

2564523206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950863.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 2564523206 is about 50641.1216897888. The cubic root of 2564523206 is about 1368.7859680268.

Adding to 2564523206 its reverse (6023254652), we get a palindrome (8587777858).

The spelling of 2564523206 in words is "two billion, five hundred sixty-four million, five hundred twenty-three thousand, two hundred six".