2561327 has 2 divisors, whose sum is σ = 2561328. Its totient is φ = 2561326.

The previous prime is 2561323. The next prime is 2561341. The reversal of 2561327 is 7231652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2561327 - 2² = 2561323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2561296 and 2561305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2561323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280663 + 1280664.

It is an arithmetic number, because the mean of its divisors is an integer number (1280664).

2^2561327 is an apocalyptic number.

2561327 is a deficient number, since it is larger than the sum of its proper divisors (1).

2561327 is an equidigital number, since it uses as much as digits as its factorization.

2561327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 26.

The square root of 2561327 is about 1600.4146337746. The cubic root of 2561327 is about 136.8217085062.

Adding to 2561327 its reverse (7231652), we get a palindrome (9792979).

The spelling of 2561327 in words is "two million, five hundred sixty-one thousand, three hundred twenty-seven".