53678281 has 2 divisors, whose sum is σ = 53678282. Its totient is φ = 53678280.

The previous prime is 53678279. The next prime is 53678327. The reversal of 53678281 is 18287635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27248400 + 26429881 = 5220^2 + 5141^2 .

It is a cyclic number.

It is not a de Polignac number, because 53678281 - 2¹ = 53678279 is a prime.

It is a super-2 number, since 2×53678281² = 5762715702229922, which contains 22 as substring.

Together with 53678279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53678221) 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, 26839140 + 26839141.

It is an arithmetic number, because the mean of its divisors is an integer number (26839141).

Almost surely, 2^53678281 is an apocalyptic number.

It is an amenable number.

53678281 is a deficient number, since it is larger than the sum of its proper divisors (1).

53678281 is an equidigital number, since it uses as much as digits as its factorization.

53678281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 53678281 is about 7326.5463214259. The cubic root of 53678281 is about 377.2241886925.

The spelling of 53678281 in words is "fifty-three million, six hundred seventy-eight thousand, two hundred eighty-one".