53042304 has 96 divisors (see below), whose sum is σ = 163954800. Its totient is φ = 15149568.

The previous prime is 53042303. The next prime is 53042321. The reversal of 53042304 is 40324035.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (53042303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17407 + ... + 20225.

Almost surely, 2^53042304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53042304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81977400).

53042304 is an abundant number, since it is smaller than the sum of its proper divisors (110912496).

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

53042304 is a wasteful number, since it uses less digits than its factorization.

53042304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 53042304 is about 7283.0147603860. The cubic root of 53042304 is about 375.7284896688.

Adding to 53042304 its reverse (40324035), we get a palindrome (93366339).

The spelling of 53042304 in words is "fifty-three million, forty-two thousand, three hundred four".