45825281 has 2 divisors, whose sum is σ = 45825282. Its totient is φ = 45825280.

The previous prime is 45825271. The next prime is 45825289. The reversal of 45825281 is 18252854.

It is a happy number.

45825281 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., 42042256 + 3783025 = 6484^2 + 1945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45825281 is a prime.

It is a super-2 number, since 2×45825281² = 4199912757457922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45825289) 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, 22912640 + 22912641.

It is an arithmetic number, because the mean of its divisors is an integer number (22912641).

Almost surely, 2^45825281 is an apocalyptic number.

It is an amenable number.

45825281 is a deficient number, since it is larger than the sum of its proper divisors (1).

45825281 is an equidigital number, since it uses as much as digits as its factorization.

45825281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25600, while the sum is 35.

The square root of 45825281 is about 6769.4372735110. The cubic root of 45825281 is about 357.8505691181.

It can be divided in two parts, 4 and 5825281, that added together give a palindrome (5825285).

The spelling of 45825281 in words is "forty-five million, eight hundred twenty-five thousand, two hundred eighty-one".