5531254463681 has 2 divisors, whose sum is σ = 5531254463682. Its totient is φ = 5531254463680.

The previous prime is 5531254463593. The next prime is 5531254463699. The reversal of 5531254463681 is 1863644521355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2907567215281 + 2623687248400 = 1705159^2 + 1619780^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531254463681 - 2²⁶ = 5531187354817 is a prime.

It is a super-2 number, since 2×5531254463681² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5531254468681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765627231840 + 2765627231841.

It is an arithmetic number, because the mean of its divisors is an integer number (2765627231841).

Almost surely, 2^{5531254463681} is an apocalyptic number.

It is an amenable number.

5531254463681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531254463681 is an equidigital number, since it uses as much as digits as its factorization.

5531254463681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368000, while the sum is 53.

The spelling of 5531254463681 in words is "five trillion, five hundred thirty-one billion, two hundred fifty-four million, four hundred sixty-three thousand, six hundred eighty-one".