53445065 has 4 divisors (see below), whose sum is σ = 64134084. Its totient is φ = 42756048.

The previous prime is 53445053. The next prime is 53445071. The reversal of 53445065 is 56054435.

53445065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13097161 + 40347904 = 3619^2 + 6352^2 .

It is a cyclic number.

It is not a de Polignac number, because 53445065 - 2¹² = 53440969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5344502 + ... + 5344511.

It is an arithmetic number, because the mean of its divisors is an integer number (16033521).

Almost surely, 2^53445065 is an apocalyptic number.

It is an amenable number.

53445065 is a deficient number, since it is larger than the sum of its proper divisors (10689019).

53445065 is a wasteful number, since it uses less digits than its factorization.

53445065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689018.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 53445065 is about 7310.6131753773. The cubic root of 53445065 is about 376.6770870152.

The spelling of 53445065 in words is "fifty-three million, four hundred forty-five thousand, sixty-five".