54466451261 has 2 divisors, whose sum is σ = 54466451262. Its totient is φ = 54466451260.

The previous prime is 54466451257. The next prime is 54466451267. The reversal of 54466451261 is 16215466445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51763075225 + 2703376036 = 227515^2 + 51994^2 .

It is a cyclic number.

It is not a de Polignac number, because 54466451261 - 2² = 54466451257 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 (54466451267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27233225630 + 27233225631.

It is an arithmetic number, because the mean of its divisors is an integer number (27233225631).

Almost surely, 2^54466451261 is an apocalyptic number.

It is an amenable number.

54466451261 is a deficient number, since it is larger than the sum of its proper divisors (1).

54466451261 is an equidigital number, since it uses as much as digits as its factorization.

54466451261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 44.

The spelling of 54466451261 in words is "fifty-four billion, four hundred sixty-six million, four hundred fifty-one thousand, two hundred sixty-one".