54707993 has 2 divisors, whose sum is σ = 54707994. Its totient is φ = 54707992.

The previous prime is 54707987. The next prime is 54708013. The reversal of 54707993 is 39970745.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43665664 + 11042329 = 6608^2 + 3323^2 .

It is a cyclic number.

It is not a de Polignac number, because 54707993 - 2⁴ = 54707977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (54707293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27353996 + 27353997.

It is an arithmetic number, because the mean of its divisors is an integer number (27353997).

Almost surely, 2^54707993 is an apocalyptic number.

It is an amenable number.

54707993 is a deficient number, since it is larger than the sum of its proper divisors (1).

54707993 is an equidigital number, since it uses as much as digits as its factorization.

54707993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 54707993 is about 7396.4851787859. The cubic root of 54707993 is about 379.6210279960.

The spelling of 54707993 in words is "fifty-four million, seven hundred seven thousand, nine hundred ninety-three".