53528420 has 24 divisors (see below), whose sum is σ = 122629248. Its totient is φ = 19464800.

The previous prime is 53528407. The next prime is 53528473. The reversal of 53528420 is 2482535.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121436 + ... + 121875.

It is an arithmetic number, because the mean of its divisors is an integer number (5109552).

Almost surely, 2^53528420 is an apocalyptic number.

It is an amenable number.

53528420 is an abundant number, since it is smaller than the sum of its proper divisors (69100828).

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

53528420 is a wasteful number, since it uses less digits than its factorization.

53528420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243331 (or 243329 counting only the distinct ones).

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

The square root of 53528420 is about 7316.3119124324. The cubic root of 53528420 is about 376.8728120372.

The spelling of 53528420 in words is "fifty-three million, five hundred twenty-eight thousand, four hundred twenty".