53530040 has 32 divisors (see below), whose sum is σ = 120707280. Its totient is φ = 21364992.

The previous prime is 53530033. The next prime is 53530063. The reversal of 53530040 is 4003535.

53530040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 53529994 and 53530021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21332 + ... + 23708.

Almost surely, 2^53530040 is an apocalyptic number.

It is an amenable number.

53530040 is an abundant number, since it is smaller than the sum of its proper divisors (67177240).

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

53530040 is a wasteful number, since it uses less digits than its factorization.

53530040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2947 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 53530040 is about 7316.4226231130. The cubic root of 53530040 is about 376.8766139291.

Adding to 53530040 its reverse (4003535), we get a palindrome (57533575).

The spelling of 53530040 in words is "fifty-three million, five hundred thirty thousand, forty".