54688722391 has 2 divisors, whose sum is σ = 54688722392. Its totient is φ = 54688722390.

The previous prime is 54688722359. The next prime is 54688722421. The reversal of 54688722391 is 19322788645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54688722391 - 2⁵ = 54688722359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54688722311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27344361195 + 27344361196.

It is an arithmetic number, because the mean of its divisors is an integer number (27344361196).

Almost surely, 2^54688722391 is an apocalyptic number.

54688722391 is a deficient number, since it is larger than the sum of its proper divisors (1).

54688722391 is an equidigital number, since it uses as much as digits as its factorization.

54688722391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 55.

The spelling of 54688722391 in words is "fifty-four billion, six hundred eighty-eight million, seven hundred twenty-two thousand, three hundred ninety-one".