54051305261 has 2 divisors, whose sum is σ = 54051305262. Its totient is φ = 54051305260.

The previous prime is 54051305249. The next prime is 54051305311. The reversal of 54051305261 is 16250315045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53580675625 + 470629636 = 231475^2 + 21694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54051305261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54051305761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27025652630 + 27025652631.

It is an arithmetic number, because the mean of its divisors is an integer number (27025652631).

Almost surely, 2^54051305261 is an apocalyptic number.

It is an amenable number.

54051305261 is a deficient number, since it is larger than the sum of its proper divisors (1).

54051305261 is an equidigital number, since it uses as much as digits as its factorization.

54051305261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 54051305261 in words is "fifty-four billion, fifty-one million, three hundred five thousand, two hundred sixty-one".