53030403 has 16 divisors (see below), whose sum is σ = 78796800. Its totient is φ = 35248680.

The previous prime is 53030359. The next prime is 53030413. The reversal of 53030403 is 30403035.

It is a happy number.

It is not a de Polignac number, because 53030403 - 2⁹ = 53029891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53030413) 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 15 ways as a sum of consecutive naturals, for example, 6958 + ... + 12428.

It is an arithmetic number, because the mean of its divisors is an integer number (4924800).

Almost surely, 2^53030403 is an apocalyptic number.

53030403 is a deficient number, since it is larger than the sum of its proper divisors (25766397).

53030403 is a wasteful number, since it uses less digits than its factorization.

53030403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839 (or 5833 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 53030403 is about 7282.1976765260. The cubic root of 53030403 is about 375.7003870735.

Adding to 53030403 its reverse (30403035), we get a palindrome (83433438).

The spelling of 53030403 in words is "fifty-three million, thirty thousand, four hundred three".