53445333 has 16 divisors (see below), whose sum is σ = 74772992. Its totient is φ = 33912000.

The previous prime is 53445313. The next prime is 53445349. The reversal of 53445333 is 33354435.

It is not a de Polignac number, because 53445333 - 2⁶ = 53445269 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 53445333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53445313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 963 + ... + 10383.

It is an arithmetic number, because the mean of its divisors is an integer number (4673312).

Almost surely, 2^53445333 is an apocalyptic number.

It is an amenable number.

53445333 is a deficient number, since it is larger than the sum of its proper divisors (21327659).

53445333 is a wasteful number, since it uses less digits than its factorization.

53445333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9516.

The product of its digits is 32400, while the sum is 30.

The square root of 53445333 is about 7310.6315048702. The cubic root of 53445333 is about 376.6777166292.

Adding to 53445333 its reverse (33354435), we get a palindrome (86799768).

The spelling of 53445333 in words is "fifty-three million, four hundred forty-five thousand, three hundred thirty-three".