455135060531561 has 2 divisors, whose sum is σ = 455135060531562. Its totient is φ = 455135060531560.

The previous prime is 455135060531309. The next prime is 455135060531587. The reversal of 455135060531561 is 165135060531554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342770417683600 + 112364642847961 = 18514060^2 + 10600219^2 .

It is a cyclic number.

It is not a de Polignac number, because 455135060531561 - 2¹⁰ = 455135060530537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (455135060131561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227567530265780 + 227567530265781.

It is an arithmetic number, because the mean of its divisors is an integer number (227567530265781).

Almost surely, 2^{455135060531561} is an apocalyptic number.

It is an amenable number.

455135060531561 is a deficient number, since it is larger than the sum of its proper divisors (1).

455135060531561 is an equidigital number, since it uses as much as digits as its factorization.

455135060531561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050000, while the sum is 50.

The spelling of 455135060531561 in words is "four hundred fifty-five trillion, one hundred thirty-five billion, sixty million, five hundred thirty-one thousand, five hundred sixty-one".