53016403 has 32 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 42451200.

The previous prime is 53016389. The next prime is 53016413. The reversal of 53016403 is 30461035.

It is not a de Polignac number, because 53016403 - 2¹³ = 53008211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53016413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196953 + ... + 197221.

It is an arithmetic number, because the mean of its divisors is an integer number (2041200).

Almost surely, 2^53016403 is an apocalyptic number.

53016403 is a deficient number, since it is larger than the sum of its proper divisors (12301997).

53016403 is a wasteful number, since it uses less digits than its factorization.

53016403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 53016403 is about 7281.2363647941. The cubic root of 53016403 is about 375.6673225919.

Adding to 53016403 its reverse (30461035), we get a palindrome (83477438).

The spelling of 53016403 in words is "fifty-three million, sixteen thousand, four hundred three".