45009553 has 2 divisors, whose sum is σ = 45009554. Its totient is φ = 45009552.

The previous prime is 45009509. The next prime is 45009563. The reversal of 45009553 is 35590054.

45009553 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., 33907329 + 11102224 = 5823^2 + 3332^2 .

It is a cyclic number.

It is not a de Polignac number, because 45009553 - 2¹⁷ = 44878481 is a prime.

It is a super-2 number, since 2×45009553² = 4051719722519618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45009563) 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, 22504776 + 22504777.

It is an arithmetic number, because the mean of its divisors is an integer number (22504777).

Almost surely, 2^45009553 is an apocalyptic number.

It is an amenable number.

45009553 is a deficient number, since it is larger than the sum of its proper divisors (1).

45009553 is an equidigital number, since it uses as much as digits as its factorization.

45009553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 45009553 is about 6708.9159332935. The cubic root of 45009553 is about 355.7144982991.

The spelling of 45009553 in words is "forty-five million, nine thousand, five hundred fifty-three".