54657643 has 2 divisors, whose sum is σ = 54657644. Its totient is φ = 54657642.

The previous prime is 54657641. The next prime is 54657653. The reversal of 54657643 is 34675645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54657643 - 2¹ = 54657641 is a prime.

Together with 54657641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 54657596 and 54657605.

It is not a weakly prime, because it can be changed into another prime (54657641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27328821 + 27328822.

It is an arithmetic number, because the mean of its divisors is an integer number (27328822).

Almost surely, 2^54657643 is an apocalyptic number.

54657643 is a deficient number, since it is larger than the sum of its proper divisors (1).

54657643 is an equidigital number, since it uses as much as digits as its factorization.

54657643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 40.

The square root of 54657643 is about 7393.0807516217. The cubic root of 54657643 is about 379.5045320053.

The spelling of 54657643 in words is "fifty-four million, six hundred fifty-seven thousand, six hundred forty-three".