53603013 has 4 divisors (see below), whose sum is σ = 71470688. Its totient is φ = 35735340.

The previous prime is 53603003. The next prime is 53603021. The reversal of 53603013 is 31030635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53603013 - 2¹⁴ = 53586629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53603003) 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, 8933833 + ... + 8933838.

It is an arithmetic number, because the mean of its divisors is an integer number (17867672).

Almost surely, 2^53603013 is an apocalyptic number.

It is an amenable number.

53603013 is a deficient number, since it is larger than the sum of its proper divisors (17867675).

53603013 is a wasteful number, since it uses less digits than its factorization.

53603013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867674.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 53603013 is about 7321.4078564167. The cubic root of 53603013 is about 377.0477908959.

Adding to 53603013 its reverse (31030635), we get a palindrome (84633648).

The spelling of 53603013 in words is "fifty-three million, six hundred three thousand, thirteen".