53604040 has 64 divisors (see below), whose sum is σ = 140688000. Its totient is φ = 18373824.

The previous prime is 53603993. The next prime is 53604113. The reversal of 53604040 is 4040635.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11767 + ... + 15673.

It is an arithmetic number, because the mean of its divisors is an integer number (2198250).

Almost surely, 2^53604040 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 53604040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70344000).

53604040 is an abundant number, since it is smaller than the sum of its proper divisors (87083960).

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

53604040 is a wasteful number, since it uses less digits than its factorization.

53604040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939 (or 3921 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 53604040 is about 7321.4779928646. The cubic root of 53604040 is about 377.0501988800.

Adding to 53604040 its reverse (4040635), we get a palindrome (57644675).

The spelling of 53604040 in words is "fifty-three million, six hundred four thousand, forty".