53345328 has 20 divisors (see below), whose sum is σ = 137808888. Its totient is φ = 17781760.

The previous prime is 53345317. The next prime is 53345359. The reversal of 53345328 is 82354335.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555633 + ... + 555728.

Almost surely, 2^53345328 is an apocalyptic number.

It is an amenable number.

53345328 is an abundant number, since it is smaller than the sum of its proper divisors (84463560).

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

53345328 is a wasteful number, since it uses less digits than its factorization.

53345328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111372 (or 1111366 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 53345328 is about 7303.7886059223. The cubic root of 53345328 is about 376.4426279709.

The spelling of 53345328 in words is "fifty-three million, three hundred forty-five thousand, three hundred twenty-eight".