6254528681 has 2 divisors, whose sum is σ = 6254528682. Its totient is φ = 6254528680.

The previous prime is 6254528647. The next prime is 6254528711. The reversal of 6254528681 is 1868254526.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6240210025 + 14318656 = 78995^2 + 3784^2 .

It is a cyclic number.

It is not a de Polignac number, because 6254528681 - 2²⁶ = 6187419817 is a prime.

It is a super-2 number, since 2×6254528681² = 78238258042903199522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6254528611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3127264340 + 3127264341.

It is an arithmetic number, because the mean of its divisors is an integer number (3127264341).

Almost surely, 2^6254528681 is an apocalyptic number.

It is an amenable number.

6254528681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6254528681 is an equidigital number, since it uses as much as digits as its factorization.

6254528681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 921600, while the sum is 47.

The square root of 6254528681 is about 79085.5782112011. The cubic root of 6254528681 is about 1842.4605433319.

The spelling of 6254528681 in words is "six billion, two hundred fifty-four million, five hundred twenty-eight thousand, six hundred eighty-one".