5625281 has 2 divisors, whose sum is σ = 5625282. Its totient is φ = 5625280.

The previous prime is 5625251. The next prime is 5625313. The reversal of 5625281 is 1825265.

5625281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5452225 + 173056 = 2335^2 + 416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5625281 is a prime.

It is a super-2 number, since 2×5625281² = 63287572657922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5625251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2812640 + 2812641.

It is an arithmetic number, because the mean of its divisors is an integer number (2812641).

Almost surely, 2^5625281 is an apocalyptic number.

It is an amenable number.

5625281 is a deficient number, since it is larger than the sum of its proper divisors (1).

5625281 is an equidigital number, since it uses as much as digits as its factorization.

5625281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

The square root of 5625281 is about 2371.7674843880. The cubic root of 5625281 is about 177.8476266182.

The spelling of 5625281 in words is "five million, six hundred twenty-five thousand, two hundred eighty-one".