54017527891 has 2 divisors, whose sum is σ = 54017527892. Its totient is φ = 54017527890.

The previous prime is 54017527849. The next prime is 54017527901. The reversal of 54017527891 is 19872571045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54017527891 - 2⁹ = 54017527379 is a prime.

It is not a weakly prime, because it can be changed into another prime (54017527831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27008763945 + 27008763946.

It is an arithmetic number, because the mean of its divisors is an integer number (27008763946).

Almost surely, 2^54017527891 is an apocalyptic number.

54017527891 is a deficient number, since it is larger than the sum of its proper divisors (1).

54017527891 is an equidigital number, since it uses as much as digits as its factorization.

54017527891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 54017527891 in words is "fifty-four billion, seventeen million, five hundred twenty-seven thousand, eight hundred ninety-one".