53281235 has 8 divisors (see below), whose sum is σ = 73071456. Its totient is φ = 36535680.

The previous prime is 53281223. The next prime is 53281279. The reversal of 53281235 is 53218235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53281235 - 2¹⁸ = 53019091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53281198 and 53281207.

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, 761126 + ... + 761195.

It is an arithmetic number, because the mean of its divisors is an integer number (9133932).

Almost surely, 2^53281235 is an apocalyptic number.

53281235 is a deficient number, since it is larger than the sum of its proper divisors (19790221).

53281235 is a wasteful number, since it uses less digits than its factorization.

53281235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522333.

The product of its digits is 7200, while the sum is 29.

The square root of 53281235 is about 7299.3996328465. The cubic root of 53281235 is about 376.2918055997.

The spelling of 53281235 in words is "fifty-three million, two hundred eighty-one thousand, two hundred thirty-five".