53163403 has 4 divisors (see below), whose sum is σ = 56290680. Its totient is φ = 50036128.

The previous prime is 53163401. The next prime is 53163421. The reversal of 53163403 is 30436135.

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

It is a cyclic number.

It is not a de Polignac number, because 53163403 - 2¹ = 53163401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53163401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1563613 + ... + 1563646.

It is an arithmetic number, because the mean of its divisors is an integer number (14072670).

Almost surely, 2^53163403 is an apocalyptic number.

53163403 is a deficient number, since it is larger than the sum of its proper divisors (3127277).

53163403 is a wasteful number, since it uses less digits than its factorization.

53163403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127276.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 53163403 is about 7291.3238167016. The cubic root of 53163403 is about 376.0142097957.

Adding to 53163403 its reverse (30436135), we get a palindrome (83599538).

The spelling of 53163403 in words is "fifty-three million, one hundred sixty-three thousand, four hundred three".