2564422101 has 12 divisors (see below), whose sum is σ = 3707301312. Its totient is φ = 1708167336.

The previous prime is 2564422067. The next prime is 2564422109. The reversal of 2564422101 is 1012244652.

2564422101 is a `hidden beast` number, since 2 + 5 + 6 + 442 + 210 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2564422101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564422109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 109341 + ... + 130706.

It is an arithmetic number, because the mean of its divisors is an integer number (308941776).

Almost surely, 2^2564422101 is an apocalyptic number.

It is an amenable number.

2564422101 is a deficient number, since it is larger than the sum of its proper divisors (1142879211).

2564422101 is a wasteful number, since it uses less digits than its factorization.

2564422101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241240 (or 241237 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2564422101 is about 50640.1234299444. The cubic root of 2564422101 is about 1368.7679798977.

Adding to 2564422101 its reverse (1012244652), we get a palindrome (3576666753).

The spelling of 2564422101 in words is "two billion, five hundred sixty-four million, four hundred twenty-two thousand, one hundred one".