49653281 has 2 divisors, whose sum is σ = 49653282. Its totient is φ = 49653280.

The previous prime is 49653221. The next prime is 49653287. The reversal of 49653281 is 18235694.

It is a happy number.

49653281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49224256 + 429025 = 7016^2 + 655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49653281 is a prime.

It is a super-2 number, since 2×49653281² = 4930896628129922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49653287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24826640 + 24826641.

It is an arithmetic number, because the mean of its divisors is an integer number (24826641).

Almost surely, 2^49653281 is an apocalyptic number.

It is an amenable number.

49653281 is a deficient number, since it is larger than the sum of its proper divisors (1).

49653281 is an equidigital number, since it uses as much as digits as its factorization.

49653281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 49653281 is about 7046.5084261640. The cubic root of 49653281 is about 367.5496247794.

The spelling of 49653281 in words is "forty-nine million, six hundred fifty-three thousand, two hundred eighty-one".