45056281 has 2 divisors, whose sum is σ = 45056282. Its totient is φ = 45056280.

The previous prime is 45056279. The next prime is 45056317. The reversal of 45056281 is 18265054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24950025 + 20106256 = 4995^2 + 4484^2 .

It is a cyclic number.

It is not a de Polignac number, because 45056281 - 2¹ = 45056279 is a prime.

It is a super-2 number, since 2×45056281² = 4060136915101922, which contains 22 as substring.

Together with 45056279, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45056251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22528140 + 22528141.

It is an arithmetic number, because the mean of its divisors is an integer number (22528141).

Almost surely, 2^45056281 is an apocalyptic number.

It is an amenable number.

45056281 is a deficient number, since it is larger than the sum of its proper divisors (1).

45056281 is an equidigital number, since it uses as much as digits as its factorization.

45056281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 45056281 is about 6712.3975597397. The cubic root of 45056281 is about 355.8375542367.

The spelling of 45056281 in words is "forty-five million, fifty-six thousand, two hundred eighty-one".