49278353 has 2 divisors, whose sum is σ = 49278354. Its totient is φ = 49278352.

The previous prime is 49278349. The next prime is 49278371. The reversal of 49278353 is 35387294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 3810304 = 6743^2 + 1952^2 .

It is a cyclic number.

It is not a de Polignac number, because 49278353 - 2² = 49278349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49278353.

It is not a weakly prime, because it can be changed into another prime (49278373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24639176 + 24639177.

It is an arithmetic number, because the mean of its divisors is an integer number (24639177).

Almost surely, 2^49278353 is an apocalyptic number.

It is an amenable number.

49278353 is a deficient number, since it is larger than the sum of its proper divisors (1).

49278353 is an equidigital number, since it uses as much as digits as its factorization.

49278353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 49278353 is about 7019.8542007651. The cubic root of 49278353 is about 366.6221737564.

The spelling of 49278353 in words is "forty-nine million, two hundred seventy-eight thousand, three hundred fifty-three".