54511643 has 2 divisors, whose sum is σ = 54511644. Its totient is φ = 54511642.

The previous prime is 54511631. The next prime is 54511651. The reversal of 54511643 is 34611545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54511643 - 2⁶ = 54511579 is a prime.

It is not a weakly prime, because it can be changed into another prime (54511603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27255821 + 27255822.

It is an arithmetic number, because the mean of its divisors is an integer number (27255822).

Almost surely, 2^54511643 is an apocalyptic number.

54511643 is a deficient number, since it is larger than the sum of its proper divisors (1).

54511643 is an equidigital number, since it uses as much as digits as its factorization.

54511643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 54511643 is about 7383.2000514682. The cubic root of 54511643 is about 379.1663233154.

The spelling of 54511643 in words is "fifty-four million, five hundred eleven thousand, six hundred forty-three".