2561412001 has 4 divisors (see below), whose sum is σ = 2561514004. Its totient is φ = 2561310000.

The previous prime is 2561411999. The next prime is 2561412013. The reversal of 2561412001 is 1002141652.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 116208400 + 2445203601 = 10780^2 + 49449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2561412001 - 2¹ = 2561411999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2561412031) by changing a digit.

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, 16051 + ... + 73351.

It is an arithmetic number, because the mean of its divisors is an integer number (640378501).

Almost surely, 2^2561412001 is an apocalyptic number.

It is an amenable number.

2561412001 is a deficient number, since it is larger than the sum of its proper divisors (102003).

2561412001 is an equidigital number, since it uses as much as digits as its factorization.

2561412001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102002.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2561412001 is about 50610.3941992156. The cubic root of 2561412001 is about 1368.2322202548.

Adding to 2561412001 its reverse (1002141652), we get a palindrome (3563553653).

The spelling of 2561412001 in words is "two billion, five hundred sixty-one million, four hundred twelve thousand, one".