53325281 has 2 divisors, whose sum is σ = 53325282. Its totient is φ = 53325280.

The previous prime is 53325257. The next prime is 53325313. The reversal of 53325281 is 18252335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41075281 + 12250000 = 6409^2 + 3500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53325281 is a prime.

It is a super-2 number, since 2×53325281² = 5687171187457922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53325241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26662640 + 26662641.

It is an arithmetic number, because the mean of its divisors is an integer number (26662641).

Almost surely, 2^53325281 is an apocalyptic number.

It is an amenable number.

53325281 is a deficient number, since it is larger than the sum of its proper divisors (1).

53325281 is an equidigital number, since it uses as much as digits as its factorization.

53325281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 53325281 is about 7302.4161070155. The cubic root of 53325281 is about 376.3954667595.

The spelling of 53325281 in words is "fifty-three million, three hundred twenty-five thousand, two hundred eighty-one".