54942739 has 2 divisors, whose sum is σ = 54942740. Its totient is φ = 54942738.

The previous prime is 54942697. The next prime is 54942773. The reversal of 54942739 is 93724945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54942739 - 2¹⁵ = 54909971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54942695 and 54942704.

It is not a weakly prime, because it can be changed into another prime (54942779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27471369 + 27471370.

It is an arithmetic number, because the mean of its divisors is an integer number (27471370).

Almost surely, 2^54942739 is an apocalyptic number.

54942739 is a deficient number, since it is larger than the sum of its proper divisors (1).

54942739 is an equidigital number, since it uses as much as digits as its factorization.

54942739 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 54942739 is about 7412.3369459301. The cubic root of 54942739 is about 380.1632239698.

The spelling of 54942739 in words is "fifty-four million, nine hundred forty-two thousand, seven hundred thirty-nine".