13554402461 has 2 divisors, whose sum is σ = 13554402462. Its totient is φ = 13554402460.

The previous prime is 13554402391. The next prime is 13554402469. The reversal of 13554402461 is 16420445531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13128805561 + 425596900 = 114581^2 + 20630^2 .

It is a cyclic number.

It is not a de Polignac number, because 13554402461 - 2¹⁴ = 13554386077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13554402469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777201230 + 6777201231.

It is an arithmetic number, because the mean of its divisors is an integer number (6777201231).

Almost surely, 2^13554402461 is an apocalyptic number.

It is an amenable number.

13554402461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13554402461 is an equidigital number, since it uses as much as digits as its factorization.

13554402461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 13554402461 its reverse (16420445531), we get a palindrome (29974847992).

The spelling of 13554402461 in words is "thirteen billion, five hundred fifty-four million, four hundred two thousand, four hundred sixty-one".