53503033 has 8 divisors (see below), whose sum is σ = 54327240. Its totient is φ = 52684800.

The previous prime is 53503027. The next prime is 53503067. The reversal of 53503033 is 33030535.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22733824 + 30769209 = 4768^2 + 5547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53503033 - 2⁵ = 53503001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53502995 and 53503013.

It is not an unprimeable number, because it can be changed into a prime (53503433) 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 in 7 ways as a sum of consecutive naturals, for example, 18553 + ... + 21241.

It is an arithmetic number, because the mean of its divisors is an integer number (6790905).

Almost surely, 2^53503033 is an apocalyptic number.

It is an amenable number.

53503033 is a deficient number, since it is larger than the sum of its proper divisors (824207).

53503033 is a wasteful number, since it uses less digits than its factorization.

53503033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987.

The product of its (nonzero) digits is 2025, while the sum is 22.

The square root of 53503033 is about 7314.5767478372. The cubic root of 53503033 is about 376.8132226139.

Adding to 53503033 its reverse (33030535), we get a palindrome (86533568).

The spelling of 53503033 in words is "fifty-three million, five hundred three thousand, thirty-three".