53404304 has 20 divisors (see below), whose sum is σ = 105995820. Its totient is φ = 26050560.

The previous prime is 53404303. The next prime is 53404339. The reversal of 53404304 is 40340435.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9314704 + 44089600 = 3052^2 + 6640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53404304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53404303) 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, 40049 + ... + 41360.

It is an arithmetic number, because the mean of its divisors is an integer number (5299791).

Almost surely, 2^53404304 is an apocalyptic number.

It is an amenable number.

53404304 is a deficient number, since it is larger than the sum of its proper divisors (52591516).

53404304 is a wasteful number, since it uses less digits than its factorization.

53404304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81458 (or 81452 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 53404304 is about 7307.8248473811. The cubic root of 53404304 is about 376.5813024329.

Adding to 53404304 its reverse (40340435), we get a palindrome (93744739).

The spelling of 53404304 in words is "fifty-three million, four hundred four thousand, three hundred four".