45253321 has 2 divisors, whose sum is σ = 45253322. Its totient is φ = 45253320.

The previous prime is 45253319. The next prime is 45253349. The reversal of 45253321 is 12335254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35236096 + 10017225 = 5936^2 + 3165^2 .

It is a cyclic number.

It is not a de Polignac number, because 45253321 - 2¹ = 45253319 is a prime.

Together with 45253319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45253301) 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, 22626660 + 22626661.

It is an arithmetic number, because the mean of its divisors is an integer number (22626661).

Almost surely, 2^45253321 is an apocalyptic number.

It is an amenable number.

45253321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45253321 is an equidigital number, since it uses as much as digits as its factorization.

45253321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 25.

The square root of 45253321 is about 6727.0588669938. The cubic root of 45253321 is about 356.3555158464.

Adding to 45253321 its reverse (12335254), we get a palindrome (57588575).

The spelling of 45253321 in words is "forty-five million, two hundred fifty-three thousand, three hundred twenty-one".