54943729 has 2 divisors, whose sum is σ = 54943730. Its totient is φ = 54943728.

The previous prime is 54943727. The next prime is 54943753. The reversal of 54943729 is 92734945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53993104 + 950625 = 7348^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 54943729 - 2¹ = 54943727 is a prime.

Together with 54943727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54943727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27471864 + 27471865.

It is an arithmetic number, because the mean of its divisors is an integer number (27471865).

Almost surely, 2^54943729 is an apocalyptic number.

It is an amenable number.

54943729 is a deficient number, since it is larger than the sum of its proper divisors (1).

54943729 is an equidigital number, since it uses as much as digits as its factorization.

54943729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 54943729 is about 7412.4037261876. The cubic root of 54943729 is about 380.1655073126.

The spelling of 54943729 in words is "fifty-four million, nine hundred forty-three thousand, seven hundred twenty-nine".