2563454281 has 2 divisors, whose sum is σ = 2563454282. Its totient is φ = 2563454280.

The previous prime is 2563454249. The next prime is 2563454323. The reversal of 2563454281 is 1824543652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1847624256 + 715830025 = 42984^2 + 26755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563454281 - 2⁵ = 2563454249 is a prime.

It is a super-2 number, since 2×2563454281² = 13142595701554453922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2563454221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281727140 + 1281727141.

It is an arithmetic number, because the mean of its divisors is an integer number (1281727141).

Almost surely, 2^2563454281 is an apocalyptic number.

It is an amenable number.

2563454281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563454281 is an equidigital number, since it uses as much as digits as its factorization.

2563454281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 40.

The square root of 2563454281 is about 50630.5666667874. The cubic root of 2563454281 is about 1368.5957659563.

The spelling of 2563454281 in words is "two billion, five hundred sixty-three million, four hundred fifty-four thousand, two hundred eighty-one".