2564351996 has 12 divisors (see below), whose sum is σ = 4522952448. Its totient is φ = 1272079872.

The previous prime is 2564351989. The next prime is 2564352001. The reversal of 2564351996 is 6991534652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523461 + ... + 2524476.

It is an arithmetic number, because the mean of its divisors is an integer number (376912704).

Almost surely, 2^2564351996 is an apocalyptic number.

It is an amenable number.

2564351996 is a deficient number, since it is larger than the sum of its proper divisors (1958600452).

2564351996 is a wasteful number, since it uses less digits than its factorization.

2564351996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048068 (or 5048066 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 50.

The square root of 2564351996 is about 50639.4312369324. The cubic root of 2564351996 is about 1368.7555068661.

The spelling of 2564351996 in words is "two billion, five hundred sixty-four million, three hundred fifty-one thousand, nine hundred ninety-six".