54191783 has 2 divisors, whose sum is σ = 54191784. Its totient is φ = 54191782.

The previous prime is 54191777. The next prime is 54191827. The reversal of 54191783 is 38719145.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54191783 - 2⁶ = 54191719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54191723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27095891 + 27095892.

It is an arithmetic number, because the mean of its divisors is an integer number (27095892).

Almost surely, 2^54191783 is an apocalyptic number.

54191783 is a deficient number, since it is larger than the sum of its proper divisors (1).

54191783 is an equidigital number, since it uses as much as digits as its factorization.

54191783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 54191783 is about 7361.5068430315. The cubic root of 54191783 is about 378.4232519082.

The spelling of 54191783 in words is "fifty-four million, one hundred ninety-one thousand, seven hundred eighty-three".