54526836491 has 2 divisors, whose sum is σ = 54526836492. Its totient is φ = 54526836490.

The previous prime is 54526836457. The next prime is 54526836493. The reversal of 54526836491 is 19463862545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54526836491 is a prime.

It is a Sophie Germain prime.

Together with 54526836493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54526836493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27263418245 + 27263418246.

It is an arithmetic number, because the mean of its divisors is an integer number (27263418246).

Almost surely, 2^54526836491 is an apocalyptic number.

54526836491 is a deficient number, since it is larger than the sum of its proper divisors (1).

54526836491 is an equidigital number, since it uses as much as digits as its factorization.

54526836491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 53.

The spelling of 54526836491 in words is "fifty-four billion, five hundred twenty-six million, eight hundred thirty-six thousand, four hundred ninety-one".