53040813 has 8 divisors (see below), whose sum is σ = 80824128. Its totient is φ = 30309024.

The previous prime is 53040809. The next prime is 53040821. The reversal of 53040813 is 31804035.

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

It is not a de Polignac number, because 53040813 - 2² = 53040809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53040803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262856 + ... + 1262897.

It is an arithmetic number, because the mean of its divisors is an integer number (10103016).

Almost surely, 2^53040813 is an apocalyptic number.

It is an amenable number.

53040813 is a deficient number, since it is larger than the sum of its proper divisors (27783315).

53040813 is a wasteful number, since it uses less digits than its factorization.

53040813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525763.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 53040813 is about 7282.9123982099. The cubic root of 53040813 is about 375.7249691052.

Adding to 53040813 its reverse (31804035), we get a palindrome (84844848).

The spelling of 53040813 in words is "fifty-three million, forty thousand, eight hundred thirteen".