53278353 has 6 divisors (see below), whose sum is σ = 76957634. Its totient is φ = 35518896.

The previous prime is 53278349. The next prime is 53278361. The reversal of 53278353 is 35387235.

53278353 is a `hidden beast` number, since 532 + 78 + 3 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39350529 + 13927824 = 6273^2 + 3732^2 .

It is not a de Polignac number, because 53278353 - 2² = 53278349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53278363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2959900 + ... + 2959917.

Almost surely, 2^53278353 is an apocalyptic number.

It is an amenable number.

53278353 is a deficient number, since it is larger than the sum of its proper divisors (23679281).

53278353 is a wasteful number, since it uses less digits than its factorization.

53278353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919823 (or 5919820 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 53278353 is about 7299.2022166809. The cubic root of 53278353 is about 376.2850208937.

The spelling of 53278353 in words is "fifty-three million, two hundred seventy-eight thousand, three hundred fifty-three".