2564338451 has 2 divisors, whose sum is σ = 2564338452. Its totient is φ = 2564338450.

The previous prime is 2564338421. The next prime is 2564338489. The reversal of 2564338451 is 1548334652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564338451 - 2¹⁰ = 2564337427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2564338399 and 2564338408.

It is not a weakly prime, because it can be changed into another prime (2564338421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282169225 + 1282169226.

It is an arithmetic number, because the mean of its divisors is an integer number (1282169226).

Almost surely, 2^2564338451 is an apocalyptic number.

2564338451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564338451 is an equidigital number, since it uses as much as digits as its factorization.

2564338451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 41.

The square root of 2564338451 is about 50639.2974971020. The cubic root of 2564338451 is about 1368.7530969231.

The spelling of 2564338451 in words is "two billion, five hundred sixty-four million, three hundred thirty-eight thousand, four hundred fifty-one".