49290281 has 2 divisors, whose sum is σ = 49290282. Its totient is φ = 49290280.

The previous prime is 49290277. The next prime is 49290347. The reversal of 49290281 is 18209294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40386025 + 8904256 = 6355^2 + 2984^2 .

It is a cyclic number.

It is not a de Polignac number, because 49290281 - 2² = 49290277 is a prime.

It is a super-2 number, since 2×49290281² = 4859063602117922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49290251) 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, 24645140 + 24645141.

It is an arithmetic number, because the mean of its divisors is an integer number (24645141).

Almost surely, 2^49290281 is an apocalyptic number.

It is an amenable number.

49290281 is a deficient number, since it is larger than the sum of its proper divisors (1).

49290281 is an equidigital number, since it uses as much as digits as its factorization.

49290281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 49290281 is about 7020.7037396546. The cubic root of 49290281 is about 366.6517521022.

The spelling of 49290281 in words is "forty-nine million, two hundred ninety thousand, two hundred eighty-one".