53415328 has 24 divisors (see below), whose sum is σ = 105517188. Its totient is φ = 26617344.

The previous prime is 53415317. The next prime is 53415353. The reversal of 53415328 is 82351435.

It can be written as a sum of positive squares in 2 ways, for example, as 53406864 + 8464 = 7308^2 + 92^2 .

It is a super-3 number, since 3×53415328³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53415328.

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, 7350 + ... + 12682.

Almost surely, 2^53415328 is an apocalyptic number.

It is an amenable number.

53415328 is a deficient number, since it is larger than the sum of its proper divisors (52101860).

53415328 is a wasteful number, since it uses less digits than its factorization.

53415328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656 (or 5648 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 53415328 is about 7308.5790684647. The cubic root of 53415328 is about 376.6072126208.

The spelling of 53415328 in words is "fifty-three million, four hundred fifteen thousand, three hundred twenty-eight".