53528240 has 40 divisors (see below), whose sum is σ = 131777280. Its totient is φ = 20151296.

The previous prime is 53528239. The next prime is 53528273. The reversal of 53528240 is 4282535.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18320 + ... + 21039.

It is an arithmetic number, because the mean of its divisors is an integer number (3294432).

Almost surely, 2^53528240 is an apocalyptic number.

It is an amenable number.

53528240 is an abundant number, since it is smaller than the sum of its proper divisors (78249040).

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

53528240 is a wasteful number, since it uses less digits than its factorization.

53528240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39389 (or 39383 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 53528240 is about 7316.2996111422. The cubic root of 53528240 is about 376.8723896001.

The spelling of 53528240 in words is "fifty-three million, five hundred twenty-eight thousand, two hundred forty".