49318993 has 2 divisors, whose sum is σ = 49318994. Its totient is φ = 49318992.

The previous prime is 49318987. The next prime is 49318999. The reversal of 49318993 is 39981394.

It is a balanced prime because it is at equal distance from previous prime (49318987) and next prime (49318999).

It can be written as a sum of positive squares in only one way, i.e., 25230529 + 24088464 = 5023^2 + 4908^2 .

It is a cyclic number.

It is not a de Polignac number, because 49318993 - 2⁵ = 49318961 is a prime.

It is not a weakly prime, because it can be changed into another prime (49318999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24659496 + 24659497.

It is an arithmetic number, because the mean of its divisors is an integer number (24659497).

Almost surely, 2^49318993 is an apocalyptic number.

It is an amenable number.

49318993 is a deficient number, since it is larger than the sum of its proper divisors (1).

49318993 is an equidigital number, since it uses as much as digits as its factorization.

49318993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The square root of 49318993 is about 7022.7482512190. The cubic root of 49318993 is about 366.7229308517.

It can be divided in two parts, 4931 and 8993, that added together give a square (13924 = 118²).

The spelling of 49318993 in words is "forty-nine million, three hundred eighteen thousand, nine hundred ninety-three".