2564423001 has 12 divisors (see below), whose sum is σ = 4233333312. Its totient is φ = 1465384536.

The previous prime is 2564422997. The next prime is 2564423003. The reversal of 2564423001 is 1003244652.

It is not a de Polignac number, because 2564423001 - 2² = 2564422997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2564423003) 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, 20352501 + ... + 20352626.

It is an arithmetic number, because the mean of its divisors is an integer number (352777776).

Almost surely, 2^2564423001 is an apocalyptic number.

2564423001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2564423001 is a deficient number, since it is larger than the sum of its proper divisors (1668910311).

2564423001 is a wasteful number, since it uses less digits than its factorization.

2564423001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40705140 (or 40705137 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2564423001 is about 50640.1323161778. The cubic root of 2564423001 is about 1368.7681400236.

Adding to 2564423001 its reverse (1003244652), we get a palindrome (3567667653).

The spelling of 2564423001 in words is "two billion, five hundred sixty-four million, four hundred twenty-three thousand, one".