53305404 has 24 divisors (see below), whose sum is σ = 131696208. Its totient is φ = 16723200.

The previous prime is 53305381. The next prime is 53305409. The reversal of 53305404 is 40450335.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53305409) 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, 130447 + ... + 130854.

It is an arithmetic number, because the mean of its divisors is an integer number (5487342).

Almost surely, 2^53305404 is an apocalyptic number.

It is an amenable number.

53305404 is an abundant number, since it is smaller than the sum of its proper divisors (78390804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53305404 is a wasteful number, since it uses less digits than its factorization.

53305404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261325 (or 261323 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53305404 is about 7301.0549922597. The cubic root of 53305404 is about 376.3486938072.

Adding to 53305404 its reverse (40450335), we get a palindrome (93755739).

The spelling of 53305404 in words is "fifty-three million, three hundred five thousand, four hundred four".